No Mobile internet after 8.1 update

[SirNic]

After updating to 8.1 on my Samsung ATIV I am no longer able to connect to T Mobile internet although my home WiFi works fine.
With my home WiFi modem switched off I am still getting a very strong signal and my phone has plenty of credit yet still unable to connect to mobile internet. :crying:

 

[neo158]

After updating to 8.1 on my Samsung ATIV I am no longer able to connect to T Mobile internet although my home WiFi works fine.
With my home WiFi modem switched off I am still getting a very strong signal and my phone has plenty of credit yet still unable to connect to mobile internet. :crying:

You need to enter the T-Mobile APN settings manually in Mobile+SIM > SIM Settings > edit Internet APN and in edit MMS APN to get Internet and MMS working as the Samsung APN app doesn't work on WP8.1 yet.

 

[SirNic]

Many thanks, that was the correct solution :smile: