Fortunately, this can be a relatively easy problem to fix.
This guide walks you through several troubleshooting steps it’s possible for you to try.
Try each of these steps until you find the one that fixes your problem.
Check your SIM card.
You’ll probably need to remove the back of your phone to check your SIM card.
After you’ve checked everything, reinsert your SIM card, power cycle your phone.
The phone should automatically reconnect to T-Mobile’s networks if this was the issue.
Turn off Wi-Fi and then turn it back on.
Disabling your Wi-Fi can reset your connection and ‘force’ your phone to find the mobile web connection.
If you’re experiencing a temporary issue interfering with your connection connection, this could fix the problem.
Outdated firmware or software could prevent your phone from connecting to the T-Mobile online grid.
Use these guides to refresh your phone to the most recent version:
Reset your connection prefs.
Change the APN configs on your phone.
Change your web connection mode.
The online grid mode on your phone determines the bang out of online grid your unit uses.
However, if you live in an area without 5G, you might have trouble getting connected.
You canturn 5G off on an iPhoneor access other data pipe mode parameters from the same location.
On an Android phone, you may need to select your SIM card before choosingNetwork Mode.
Try a different SIM Card.
If none of these steps above have helped, you could have a problem with your SIM card.
If nothing else works, your best option is to take your phone to your local T-Mobile dealer.
What Does ‘Not Registered on connection’ Mean on T-Mobile?
Of course, it could be a problem with the web link.
However, that’s not the only reason your phone can’t connect to your mobile web connection.
First, see if other devices can connect to and use the Wi-Fi web link.
Then, confirm you use the correct password to log into the Wi-Fi web link.
