If your T Mobile REG91 unable to connect, this write-up is for you.
T-Mobile is a global telecommunication company. Since its establishment, they’ve continued to deliver a good service to all their customers by adding more innovative ideas on both internet and mobile packages. They can also boast of having the largest 5G networks in the United States.
At the moment, their customer base is about 7 million worldwide because of their extraordinary services. The majority of T-Mobile users, make use of the Wi-Fi calling option during calls to either their family members or friends.
This feature is essential especially to those that constantly experience weak network signals.
Though it’s a simple and easy feature to use some users have complained about its inability to connect. It is normally followed by an error message.
How to Fix ‘T-Mobile REG99 Unable to Connect’?
Among the most predominantly reported issues by T-Mobile, subscribers are that the error message REG91 which hinders users from making calls through Wi-Fi.
If you’re currently experiencing this issue, below are steps on how to rectify it;
1. Ensure your device can connect to a Wi-Fi network
The other device you’re trying to use with other phones needs to be able to connect to a Wi-Fi network.
Most times the problem emanates from your Wi-Fi network and not necessarily from a T-Mobile phone.
If you’re unsure of the old password, change it to another one. For those trying to use a public network, normally you’ve to go through the login page before finally connecting to the public Wi-Fi.
Hence, check if you got the proper redirection link.
In addition, the phone won’t connect if it’s locked. The issue comes from the SIM card you’re using. So, navigate to the settings app, then SIM toolkit.
Tap on storage, proceed and clear all cache including app data. Reboot your phone when done. This will eradicate the Wi-Fi calling issues that you’re facing.
However, in a situation where you changed your SIM at some point, it can as well result in an error.
If it still didn’t work, reach out to T-Mobile, they’ll send an update message to you. This will update your network settings, then you can begin to use your phone.
2. Check if you have the Correct Address
Inserting a wrong address in the T-Mobile portal can also trigger this error. To rectify this, login back into your account and confirm is the E911 address is correctly entered.
If there is a mistake, erase it and put it in the right address. The address settings can be found beneath My T-Mobile >>> Profile >>> Account Settings.
During activation, if you’ve no E911 address or skipped the option during registration, you’ll get the REG99 error.
3. Cycle your Wi-Fi
Another method to get rid of this error successfully is to try Wi-Fi cycling. To do this, turn of your router for some seconds, then allow it to reboot.
Then on your phone, cycle Wi-Fi calling before reinserting the SIM card. After completing all these, allow your phone to reboot. Now you can go back and try to place a Wi-Fi call.
4. Router Settings
There are cases where router settings becoming the main problem triggering this error. This can be a result of misplaced ports or a wrong IPv6 configuration. To fix this, change to another location temporarily.
This means that you need to try Wi-Fi calling to another place and not your house. Alternating, you can reach out to your internet service provider and make an official complaint about the issue you’re currently facing.
They’ll diagnose your line and figure out the main cause of the problem.
Conclusion
These are all you need to know about fixing of REG91 error preventing you from making a Wi-Fi calling with your phone.
Make sure to apply all the recommended troubleshooting hacks outlined in this write-up. These steps will help you resolve the error but whereby none was able to work for you, reach out to your ISP for assistance.
Frequently Asked Questions
What is the meaning of error reg99?
The implication is that you’ll need to try Wi-Fi calling to another location apart from your house. Better still, contact your internet service provider and narrate the issue you’re currently faced with. Together, they’ll figure out how best to help you eradicate the error.
My T-Mobile Wi-Fi calling suddenly stopped working.
First, forget/delete your Wi-Fi profile which you currently have on your phone. Turn off your device and wait for about 30 seconds before turning it back ON.
It’s time to connect back to your Wi-Fi network. For those using any Android device, wipe the cache partition.
My Wi-Fi calling sends a notification ‘unable to connect’.
Once you find it difficult to make use of your Wi-Fi calling, you need to be sure that the carrier you’re currently using offers a Wi-Fi calling service and your device is updated with the latest operating system.
It’s important to know that all networks do not support calls through Wi-Fi. If you’ve confirmed all these, turn off your Wi-Fi calling for some minutes, then ON again.
Navigate to setting >>> General >>> Reset. Then tap on ‘Reset Network Settings’.
What is preventing my T-mobile phone from receiving service?
For this issue, you need to troubleshoot ‘no service’ or no signal errors. To do this, restart your phone and inspect your signal bars.
On your phone, change your Wi-Fi calling preference to Cellular Only or Cellular Preferred. The importance of this is to prevent issues related to Wi-Fi calling from affecting the signal reception.
Switch off Wi-Fi to ensure you’re making use of the T-Mobile network.
