Jon_LTD
Android Expert
Anyone else not connecting via 3g? Not installed anything or changed any settings. Was working fine yesterday but today nothing. Really perplexing. Any ideas would be greatly appreciated! 
Update: My (unaltered) APN settings are the following:
Name
T-Mobile UK
APN
general.t-mobile.ukextendedcontrols
Proxy
<Not set>
Port
<Not set>
Username
t-mobile
Password
** (Default)
Server
* (Default)
MMSC
http://mmsc.t-mobile.co.uk:8002
MMS proxy
149.254.201.135
MMS port
8080
MCC
234
MNC
30
Authentication type
PAP
APN type
extendedcontrols
UPDATE #3
Simply returned to default.. All seems to work again. No idea how this happened but it looks like it's solved now.

Update: My (unaltered) APN settings are the following:
Name
T-Mobile UK
APN
general.t-mobile.ukextendedcontrols
Proxy
<Not set>
Port
<Not set>
Username
t-mobile
Password
** (Default)
Server
* (Default)
MMSC
http://mmsc.t-mobile.co.uk:8002
MMS proxy
149.254.201.135
MMS port
8080
MCC
234
MNC
30
Authentication type
PAP
APN type
extendedcontrols
UPDATE #3
Simply returned to default.. All seems to work again. No idea how this happened but it looks like it's solved now.