re: W10M Insider Bugs & Defects Thread
I have a Lumia 640 (T-mobile) and since upgrading to TP 10536 having intermittent issues with not being able to send texts. I have signal, but even sending texts to myself sometimes I get the "couldn't send" error. I set data to 2g and seems to fix the issue (not 100% sure) but walking around with 2G isn't my idea of a solution. I tried manually entering APN & MMS but still have this issue. I'm thinking it has to do with IMS registration; its says im registered when I have 4G LTE, but am unregistered on lower connection. Same issue when wifi calling enabled. I've downgraded to 8.1 and no such problems, so def a w10m issue. Has anyone else had this problem?
By they way, loving the TP aside from the intermittent texting issue!