The reset codes work file on my note 1, I cant seem to find a way to get a complete factory reset. When I use the phones factory reset it dosent erase anything really ...• We can only unlock devices that are locked to the AT&T network. • You can submit a new request if you lose your unlock code. There’s a limit to the number times you can try to enter the code to unlock your device. The specific number depends on your device model and manufacturer.The reset codes work file on my note 1, I cant seem to find a way to get a complete factory reset. When I use the phones factory reset it dosent erase anything really ...Your personal device: Is an AT&T phone or device and isn't active on another AT&T account. Paid through your monthly bill: Submit your unlock request at the start of your next bill period. Paid off early: The wireless number assigned to the device must be active for at least 60 days. Wait 48 hours after you make your final payment to submit ... There are multiple ways to reset your device if you are experiencing issues. Power cycling your device is the first step. In this tutorial, you will learn how to: • Power cycle your device • Restart your device • Reset network settings • Perform a factory data reset • Perform an alternate master reset Power cycle your deviceHello @rugr47. if you are trying to change your password for your wireless network, and you have to reset a password to get to this step, it is probably asking for the Device Access Code. This is a separate password that allows you to access the system. Look for the Device Access Code on the sticker, and try this one instead. Good Luck. Alex. 0.Make sure you have an eSIM activation card with a QR code from AT&T. Then, follow these steps on your phone: 1. Connect to Wi-Fi®. 2. Open Settings and look for Network, Connections, Mobile, or similar. 3. Find the option to download a SIM or eSIM. 4. Follow the prompts to scan the QR code on your eSIM activation card from AT&T.May 31, 2023 · We can't find that ZIP Code. Try again. ... Check our network coverage map. Turn off call forwarding. Press #21# on your phone and then the Call, Send, ... Conclusion Codes The following tables list the conclusion codes and conclusion code descriptions. ... BO-ID/Reset 109 AT&T Network 110 PTT Network 11 Emergency ...Just pick up the phone to talk to our support on 800.531.5000. Technical support is open from 5:00 AM to 2:00 AM CT and billing & account support from 7:00 AM to 9:00 PM CT every day. Using the network reset utility in Windows 10 is fairly simple. Go to Start menu > Settings, then select Network and Internet . In the left navigation pane, select Status to make sure you're viewing the network status window. Then scroll down until you see the Network Reset link. Click the Network Reset link and review the Network Reset ...Reset network settings If you are having connectivity issues, you can try resetting your network settings. Swipe down from the Notification bar with two fingers, then select the Settings icon > scroll to and select System > Reset options > Reset Wi-Fi, mobile & Bluetooth > Reset settings > select Reset settings again to confirm.And I HAVE TRIED EVERYTHING!!!! I entered the code in the back of the device, hit forgot code entered the number again, I have unplugged it, held down the reset button, unplugged it and plugged it back in WHILE holding down the reset button, logged in from chrome, Firefox, and safari. I even did a lil dance lol and nothing has worked!!!!!Call forwarding details. You can continue to make outgoing calls from your wireless phone. The designated number receives forwarded Incoming calls. Call forwarding overrides your wireless voicemail. If the designated forwarding number is busy, callers to your number will receive a busy signal. You can’t forward calls to an international number.Mar 4, 2019 · Step 1 –. Go to Settings > Backup and Reset/General Management > Reset Network Settings > Reset. If prompted, enter your password and confirm the reset. Wait for the phone to complete the reset process. Step 2 –. First, go to Settings > Mobile Data and ensure that Mobile Data is enabled. (This will vary depending on your Android phone. Hello @rugr47. if you are trying to change your password for your wireless network, and you have to reset a password to get to this step, it is probably asking for the Device Access Code. This is a separate password that allows you to access the system. Look for the Device Access Code on the sticker, and try this one instead. Good Luck. Alex. 0.And I HAVE TRIED EVERYTHING!!!! I entered the code in the back of the device, hit forgot code entered the number again, I have unplugged it, held down the reset button, unplugged it and plugged it back in WHILE holding down the reset button, logged in from chrome, Firefox, and safari. I even did a lil dance lol and nothing has worked!!!!!Reset gateway Heads up: Be sure to jot down your custom settings, like your static IP address if you have one, or your Wi-Fi ® network name (SSID). You can then change them back after the factory reset. Press and hold the gateway Reset button for at least 10 seconds. If you let go before 10 seconds, the gateway will reboot, but it won’t reset.Dec 7, 2022 · We can't find that ZIP Code. Try again. Enable your Wi-Fi network security - Pace 5031 ... Select Use custom Wireless Network Key. In the Key field, enter a new Wi-Fi ... Step 3: Input the code and your device is unlocked. If the device does not ask for the Samsung Codes, then follow the instructions below: Method 1. Step 1: Open the phone and type #7465625*638*# in the dialer. Step 2: Then, it will ask for the Samsung Reset Code, it is an 8-digit code. Step 3: Provide it and you will be done. Method 2Nov 29, 2022 · Press Win + I and click on Network & Internet. Go to the Proxy and VPN tabs and toggle off any active connections. Next, in the Wi-Fi section, click on Manage known networks. Select the Wi-Fi networks you’re having trouble with here and click on Forget. Press Win + R, type appwiz.cpl, and press Enter. Dec 7, 2022 · Call forwarding details. You can continue to make outgoing calls from your wireless phone. The designated number receives forwarded Incoming calls. Call forwarding overrides your wireless voicemail. If the designated forwarding number is busy, callers to your number will receive a busy signal. You can’t forward calls to an international number. Manage and personalize your home Wi-Fi network with AT&T Smart Home Manager. With this free and secure tool, you can add or block connected devices, run speed tests, apply internet access controls and more. Agree to the legal and eligibility requirements and click Next. It's the last checkbox at the bottom of the form. If you want to read the legal and eligibility requirements, click the blue text in the sentence "Yes, I've read the legal stuff and agree to the device unlock eligibility requirements" at the bottom of the form Then click Next at the bottom of the form.Tap the Settings icon. Scroll to and tap Backup & reset. Tap Factory data reset. Tap Reset phone. Note: Tap to check Format SD card to remove all data on the MicroSD card. If security is enabled, enter your unlock PIN, password, or pattern code. Tap Erase everything. If unable to reset the device using the above steps, try this alternate master ...Press Win + I and click on Network & Internet. Go to the Proxy and VPN tabs and toggle off any active connections. Next, in the Wi-Fi section, click on Manage known networks. Select the Wi-Fi networks you’re having trouble with here and click on Forget. Press Win + R, type appwiz.cpl, and press Enter.Samsung Galaxy Network Unlock Codes. If you see the "Enter Network Lock Control Key" or " SIM Network Unlock PIN" on the screen. If the message "Unsuccessful" appears, you have tried to enter the unlock code several times. In this case, enter: *2767*3855# to reset your Phone. Enter your Unfreeze code (MCK) into the SIM network to unlock the PIN ...AT&T provides customers using its mass market wired and fixed wireless broadband internet access services tools to help them configure, manage, and secure their local or in-home networks. These tools provide customers information regarding the status of their internet service, the devices connected to their local or in-home network, and the ...Dec 21, 2021 · We can definitely provide you with some more information on this. Unfortunately, the incorrect entry of an unlock code too many times during the life of the device disables the unlock ability and permanently locks the device to the network. We do apologize for the inconvenience. Sean, AT&T Community Specialist. 0. The password is a combination of letters, numbers, and/or symbols. Follow the prompts if you forgot your password. Your wireless passcode is different from your device passcode. You can call us at 800.331.0500 to get help for device unlock.There are multiple ways to reset your device if you are experiencing issues. Power cycling your device is the first step. In this tutorial, you will learn how to: • Power cycle your device • Restart your device • Reset network settings • Perform a factory data reset • Perform an alternate master reset Power cycle your deviceMake sure you have an eSIM activation card with a QR code from AT&T. Then, follow these steps on your phone: 1. Connect to Wi-Fi®. 2. Open Settings and look for Network, Connections, Mobile, or similar. 3. Find the option to download a SIM or eSIM. 4. Follow the prompts to scan the QR code on your eSIM activation card from AT&T.From the home screen, tap the Settings icon. 2. The settings section will open, scroll down until you see General and select it. 3. From the general screen, scroll down until you see the reset option. Select Reset. 4. You will be taken to the reset screen. Select Reset Network Settings.Aug 21, 2017 · From the home screen, tap the Settings icon. 2. The settings section will open, scroll down until you see General and select it. 3. From the general screen, scroll down until you see the reset option. Select Reset. 4. You will be taken to the reset screen. Select Reset Network Settings. Dec 2, 2020 · AT&T Router Login: Make sure you're connected to your AT&T router's network. Open a browser and go to 192.168.1.254. 1. AT&T Network Unlock Code Free. Tutorial on how to get a free network unlocking code for all types of mobile devices.. in this video i show you how to request...Talk to sales Call +1 (888) 610-2915 to find the best hosting for you.Nov 12, 2021 · Some carriers may assign special functions to certain codes that are exclusive to their network. Check the lists below for your carrier and see which features their USSD codes can unlock ... Enter a PIN code to lock your SIM card. The default PIN code for an AT&T SIM card is "1111". Change the default PIN code for more security. After activating SIM lock, you must enter the PIN code if you move the SIM card to another device. If you forget your SIM lock PIN code, learn how to get the PIN Unlock Key (PUK) code to unlock your SIM card.Conclusion Codes The following tables list the conclusion codes and conclusion code descriptions. ... BO-ID/Reset 109 AT&T Network 110 PTT Network 11 Emergency ... Dec 7, 2022 · We can't find that ZIP Code. Try again. Enable your Wi-Fi network security - Pace 5031 ... Select Use custom Wireless Network Key. In the Key field, enter a new Wi-Fi ... May 28, 2019 · The device unlock code that you received from AT&T is used to unlock your device from the AT&T network, so it is the same as the network unlock code. When you go to complete the unlock process and enter your unlock code in your device, please follow the instructions that you were provided via email along with your unlock code, and be sure to ... There are multiple ways to reset your device if you are experiencing issues. Power cycling your device is the first step. In this tutorial, you will learn how to: • Power cycle your device • Restart your device • Reset network settings • Perform a factory data reset • Perform an alternate master reset. Power cycle your device Step 2. Power on your AT&T wireless phone. After your AT&T wireless phone reboots, it will be automatically updated to local towers.Dec 7, 2022 · Select Home Network > Wireless. In Password, enter the Device Access Code (located on the side of your gateway). Scroll to the Security section. From the Security drop-down, select WPA-PSK. In the Key entry field, enter a new Wi-Fi password (Wireless Key). For 64-bit encryption, enter a 10-digit password made up of numbers and letters a-f or A-F. The MCK is the Master Code Key, and only Samsung has that for their devices. It resets the counter for the NCK input, the Network Unlock Code, which IS something AT&T has. It's likely that the Samsung reps you spoke to simply don't want to get evolved thinking it might be a stolen phone.Network Unlock code. I tried unlocking my Samsung J3 (2019) by carefully entering the code that I received by mail. But the device displays "incorrect code". The problem is that I was sent the "device unlock code" by AT&T. However, I am asked for the "network unlock code" to unlock my phone.Step 1 –. Go to Settings > Backup and Reset/General Management > Reset Network Settings > Reset. If prompted, enter your password and confirm the reset. Wait for the phone to complete the reset process. Step 2 –. First, go to Settings > Mobile Data and ensure that Mobile Data is enabled. (This will vary depending on your Android phone.Dec 7, 2022 · How to unlock a SIM with a PIN unlock key (PUK) Go to your account overview and open the My wireless section. Scroll to My devices & add-ons and choose the device that needs a PUK code. Select Manage my device. Under See device options, select Get your PIN unlock key (PUK). Aug 30, 2023 · Steps for resetting Samsung phone using Android Factory Reset Code. Step 1. First of all, remove the SIM from your Samsung device. Step 2. Next, open the phone app/dialer on your Samsung phone and enter the code - *#*#7780#*#*. Step 3. The process of factory resetting will begin as soon as the code is entered. Apr 25, 2023 · DETAILED INFO. Anyone connected to your network can use the default access code to lock you out or grant themselves privileges. If this happens, or if you forgot your access code, press and hold the Reset button on your device to change it back to the factory default settings. You can update your code at any time from a device connected to your ... Here’s how: Unplug the power cord from the back of your device. If you have: An internal battery backup, remove it. DSL service, unplug your telephone cord from your modem or gateway. Wait 20 seconds. Put the internal battery back in, if applicable. Plug the power cord back in.Recover your ID or reset your password. Restart your device if the app isn't responding. Restart your device, then open the myAT&T app 1. Sign in with your user ID and password. Be sure to delete any IDs you’ve saved first.. Reinstall the app if restarting doesn’t help. Delete the myAT&T app 1 from your smartphone or tablet. Download the ...Dec 7, 2022 · It’s usually located on the back or side of the house. Use a screwdriver to open the box. Look for a phone jack labeled customer access jack. Unplug the short telephone cord and plug in your corded phone. See if the problem still exists. If you: Don’t have a clear dial tone: The problem is with the AT&T network. Recover your ID or reset your password. Restart your device if the app isn't responding. Restart your device, then open the myAT&T app 1. Sign in with your user ID and password. Be sure to delete any IDs you’ve saved first.. Reinstall the app if restarting doesn’t help. Delete the myAT&T app 1 from your smartphone or tablet. Download the ...To program your Android TM device with the correct settings: Tap your Settings menu. Choose either Wireless & Networks, More Networks, or Connections. Tap Mobile Networks, then Access Point Names. Find and select the option to add a new APN. You may find a plus (+) symbol on the screen, or tap the menu button.Touch screen (TSP and Touch Key) firmware information code and update TSK and TSP firmware: *#2663#. Insert Network Lock Control Keycode: #7465625*638*#. Samsung Phone USB Settings Code: *#0808#. Reset total call time Code: *#22558463#. Here is the complete list of secret codes for the Samsung galaxy series.Go to Home Network > Wireless. Either change the Network Name (SSID) or the Password. Changes can be made to your Wi-Fi name under Network Name (SSID) To change the password, change the Security from WPA-Default Key to WPA – PSK option then type your desired password in the Key section. Save all changes made to your device.Your personal device: Is an AT&T phone or device and isn't active on another AT&T account. Paid through your monthly bill: Submit your unlock request at the start of your next bill period. Paid off early: The wireless number assigned to the device must be active for at least 60 days. Wait 48 hours after you make your final payment to submit ...Jun 8, 2022 · General t mobile short codes. t mobile short codes. Preventing the network connection of a stolen phone, you may utilize the IMEI number provided by these t mobile short codes numbers. This number is unique to your T-Mobile phone: IMEI number *#06#. Battery status *#0228#. Dec 7, 2022 · Select Home Network > Wireless. In Password, enter the Device Access Code (located on the side of your gateway). Scroll to the Security section. From the Security drop-down, select WPA-PSK. In the Key entry field, enter a new Wi-Fi password (Wireless Key). For 64-bit encryption, enter a 10-digit password made up of numbers and letters a-f or A-F. DETAILED INFO. Anyone connected to your network can use the default access code to lock you out or grant themselves privileges. If this happens, or if you forgot your access code, press and hold the Reset button on your device to change it back to the factory default settings.Oct 24, 2012 · The reset codes work file on my note 1, I cant seem to find a way to get a complete factory reset. When I use the phones factory reset it dosent erase anything really ... Try these tips: Make sure your Ethernet cable is connected to the WAN port on your Cell Booster and your router or gateway. If you have a modem and a separate router, try connecting your Cell Booster directly to your modem. Check the internet connection on other devices. Restart your router or gateway and your Cell Booster device.Then, follow these steps on your phone: 1. Connect to Wi-Fi®. 2. Open Settings and look for Network, Connections, Mobile, or similar. 3. Find the option to download a SIM or eSIM. 4. Follow the prompts to scan the QR code on your eSIM activation card from AT&T. Recover your ID or reset your password. Restart your device if the app isn't responding. Restart your device, then open the myAT&T app 1. Sign in with your user ID and password. Be sure to delete any IDs you’ve saved first.. Reinstall the app if restarting doesn’t help. Delete the myAT&T app 1 from your smartphone or tablet. Download the ...Use Smart Home Manager from a computer to update your Wi-Fi ® info: Sign in to Smart Home Manager. Scroll to the My Wi-Fi card and choose Change next to the name or password. Select X to clear existing info, then enter a new name or password. Select Save. Reconnect your devices with the updated network info.• We can only unlock devices that are locked to the AT&T network. • You can submit a new request if you lose your unlock code. There’s a limit to the number times you can try to enter the code to unlock your device. The specific number depends on your device model and manufacturer.Mar 14, 2023 · Use Smart Home Manager from a computer to update your Wi-Fi ® info: Sign in to Smart Home Manager. Scroll to the My Wi-Fi card and choose Change next to the name or password. Select X to clear existing info, then enter a new name or password. Select Save. Reconnect your devices with the updated network info. Mar 15, 2023 · Go to your myAT&T profile. Choose People & Permissions. Select Wireless. Scroll to Transfer phone number and select Request a new PIN. Your Number Transfer PIN will display on the screen. Heads up: AT&T employees can’t generate a Number Transfer PIN on your behalf. Sep 6, 2020 · I've tried all the resets besides factory. Flicked mobile data on and off. Don't receive any MMS even on wifi. If you haven't already, turn on wifi calling. That doesn't fix the core problem, but you'll at least be able to send & receive. This worked on my Galaxy S20 Plus. With your device powered off, press and hold down the Volume up and Power/Lock buttons at the same time until the screen lights up. 2. Press the Volume up button to scroll to Recovery Mode, then press the Volume down button to select. 3. From the "No command" screen, press and hold the Power/Lock and Volume up buttons for a few seconds then ... Whether you're troubleshooting or setting up a new network, factory resetting your router or modem is sometimes necessary. AT&T U-Verse users can reset their devices to factory default, as well. Resetting your device will erase data like your WiFi name and password. Be sure you're ready to reset the device before proceeding.AT&T provides customers using its mass market wired and fixed wireless broadband internet access services tools to help them configure, manage, and secure their local or in-home networks. These tools provide customers information regarding the status of their internet service, the devices connected to their local or in-home network, and the ...Jun 23, 2020 · The MCK is the Master Code Key, and only Samsung has that for their devices. It resets the counter for the NCK input, the Network Unlock Code, which IS something AT&T has. It's likely that the Samsung reps you spoke to simply don't want to get evolved thinking it might be a stolen phone. How to unlock a SIM with a PIN unlock key (PUK) Go to your account overview and open the My wireless section. Scroll to My devices & add-ons and choose the device that needs a PUK code. Select Manage my device. Under See device options, select Get your PIN unlock key (PUK).Then, follow these steps on your phone: 1. Connect to Wi-Fi®. 2. Open Settings and look for Network, Connections, Mobile, or similar. 3. Find the option to download a SIM or eSIM. 4. Follow the prompts to scan the QR code on your eSIM activation card from AT&T. Time to contact AT&T customer support. Your technical issues may be above our pay grade, in which case we’d recommend getting in touch with AT&T customer service directly at +1-800-288-2020 or through the provider’s support contact page. We have more info about making contact on CableTV.com’s AT&T Customer Service & Support page.AT&T provides customers using its mass market wired and fixed wireless broadband internet access services tools to help them configure, manage, and secure their local or in-home networks. These tools provide customers information regarding the status of their internet service, the devices connected to their local or in-home network, and the ...There are multiple ways to reset your device if you are experiencing issues. Power cycling your device is the first step. In this tutorial, you will learn how to: Press and hold the Volume up and Power/Lock button on the right side of the device, then select Power off . To turn the device back on, press and hold the Power/Lock button until the ... With your device powered off, press and hold down the Volume up and Power/Lock buttons at the same time until the screen lights up. 2. Press the Volume up button to scroll to Recovery Mode, then press the Volume down button to select. 3. From the "No command" screen, press and hold the Power/Lock and Volume up buttons for a few seconds then ...Reset gateway Heads up: Be sure to jot down your custom settings, like your static IP address if you have one, or your Wi-Fi ® network name (SSID). You can then change them back after the factory reset. Press and hold the gateway Reset button for at least 10 seconds. If you let go before 10 seconds, the gateway will reboot, but it won’t reset.Jan 20, 2023 · Use the AT&T Network Coverage Map. It's easy to check our network coverage in your location: Go to the AT&T Network Coverage Map. Enter an address, state, or ZIP Code, and select the search icon. We'll show you what type of coverage is available. In an area with limited or no coverage? Oct 24, 2012 · The reset codes work file on my note 1, I cant seem to find a way to get a complete factory reset. When I use the phones factory reset it dosent erase anything really ... Try these tips: Make sure your Ethernet cable is connected to the WAN port on your Cell Booster and your router or gateway. If you have a modem and a separate router, try connecting your Cell Booster directly to your modem. Check the internet connection on other devices. Restart your router or gateway and your Cell Booster device.
Jan 18, 2023 · Review and update your email settings. Access your AT&T email settings by hovering over the gear icon, then choosing Settings. Review these areas for suspicious activity: Email signature: Look for any changes to your signature or content that you don’t recognize. Accounts: Check each of your email accounts. . Is wendypercent27s open 24 hours
In this case, you must switch off the proxy usage directly in the browser or delete the corresponding extensions to fix the ERR_CONNECTION_RESET. Solution 3: clear the browser cache The browser cache not only stores passwords, cookies, and the download history, but also data from websites you’ve visited .To program your Android TM device with the correct settings: Tap your Settings menu. Choose either Wireless & Networks, More Networks, or Connections. Tap Mobile Networks, then Access Point Names. Find and select the option to add a new APN. You may find a plus (+) symbol on the screen, or tap the menu button.Conclusion Codes The following tables list the conclusion codes and conclusion code descriptions. ... BO-ID/Reset 109 AT&T Network 110 PTT Network 11 Emergency ...Mar 14, 2023 · Use Smart Home Manager from a computer to update your Wi-Fi ® info: Sign in to Smart Home Manager. Scroll to the My Wi-Fi card and choose Change next to the name or password. Select X to clear existing info, then enter a new name or password. Select Save. Reconnect your devices with the updated network info. Steps for resetting Samsung phone using Android Factory Reset Code. Step 1. First of all, remove the SIM from your Samsung device. Step 2. Next, open the phone app/dialer on your Samsung phone and enter the code - *#*#7780#*#*. Step 3. The process of factory resetting will begin as soon as the code is entered.Network reset. I am not able to send texts on my pre paid flip phone and I pretty sure its something that I did I changed the settings on the text settings there was a phone number it had on message settings. Questions. 665. 0.There are multiple ways to reset your device if you are experiencing issues. Power cycling your device is the first step. In this tutorial, you will learn how to: • Power cycle your device • Restart your device • Reset network settings • Perform a factory data reset • Perform an alternate master reset. Power cycle your deviceJust pick up the phone to talk to our support on 800.531.5000. Technical support is open from 5:00 AM to 2:00 AM CT and billing & account support from 7:00 AM to 9:00 PM CT every day. Hello @rugr47. if you are trying to change your password for your wireless network, and you have to reset a password to get to this step, it is probably asking for the Device Access Code. This is a separate password that allows you to access the system. Look for the Device Access Code on the sticker, and try this one instead. Good Luck. Alex. 0.DETAILED INFO. Anyone connected to your network can use the default access code to lock you out or grant themselves privileges. If this happens, or if you forgot your access code, press and hold the Reset button on your device to change it back to the factory default settings.Your personal device: Is an AT&T phone or device and isn't active on another AT&T account. Paid through your monthly bill: Submit your unlock request at the start of your next bill period. Paid off early: The wireless number assigned to the device must be active for at least 60 days. Wait 48 hours after you make your final payment to submit ... Manage and personalize your home Wi-Fi network with AT&T Smart Home Manager. With this free and secure tool, you can add or block connected devices, run speed tests, apply internet access controls and more. Jan 18, 2023 · Review and update your email settings. Access your AT&T email settings by hovering over the gear icon, then choosing Settings. Review these areas for suspicious activity: Email signature: Look for any changes to your signature or content that you don’t recognize. Accounts: Check each of your email accounts. There are multiple ways to reset your device if you are experiencing issues. Power cycling your device is the first step. In this tutorial, you will learn how to: • Power cycle your device • Restart your device • Reset network settings • Perform a factory data reset • Perform an alternate master reset. Power cycle your device Reset network settings If you are having connectivity issues, you can try resetting your network settings. Swipe down from the Notification bar with two fingers, then select the Settings icon > scroll to and select System > Reset options > Reset Wi-Fi, mobile & Bluetooth > Reset settings > select Reset settings again to confirm.Jun 23, 2020 · The MCK is the Master Code Key, and only Samsung has that for their devices. It resets the counter for the NCK input, the Network Unlock Code, which IS something AT&T has. It's likely that the Samsung reps you spoke to simply don't want to get evolved thinking it might be a stolen phone. I will be happy to help! At this time, we do not have a code in order to update your tower. You can power cycle your phone (turn off and back on) or put your phone in airplane mode for a moment and back out to reset the network settings. If you have an iPhone, you can reset the network settings through Settings > General > Reset > Reset network ....