Originally Posted by
Letitride3c
OP, are you on a postpaid or prepaid data plan, Simple Choice or an older plan? Have you successfully used it or roam in other Euro countires? As others noted, if it's an older Sim card, it might not be provisioned for (is the Sim card # begin with 8901 xxxx xxxx etc.) Are you tethering to another device ?
Do a quick check on your T-Mo data card's APN settings, if you can access it - make sure it's on fast.t-mobile.com. MCC - 310 and MNC - 260. APN protocol - if it's on IPv6, change it to IPv4 and APN roaming protocol should be on IPv4.
Power cycle - reboot the device & try again. The rest is, most likely, in the hands of T-Mo support.
This is it! After 4 tech support calls it turns out that I needed to add fast.t-mobile.com to the apn setting (no need or way to add the other mcc and mnc).
This is a simple choice sim purchased a month ago, with the inlimited international, that worked fine in Thailand 2 weeks ago. Used on an unlocked Verizon ipad 4.
That setting was originally added when I purchased the sim, but mysteriously disappeared - I never changed it?!? ANY CLUE HOW THIS CAN HAPPEN?
the tech who finally said this solution is b/c they "ran out" of IP adresses for ipv4. Not sure i understand all the technical stuff, but the error I got origin was that even tho I could connect to the cellular service it didn't recognize that I was allowed to use data on their service and this fixed it !
BTW, the first provider I connected to (selected by the auto setting) was achingly slow, but switching providers ended in a very useable speed
Thank you letitride, I also wanted to post this in case others have the same problem, because Tmobile doesn't seem to have this info available to their techs, even tho it has been a work around since last Nov according the the higher level tech who finally solved it.