I used TI OS 2.7.5 on XP which worked fine on my system and my host.
Yesterday I upgraded to TI OS 3.1 but had to downgrade to 2.7.5 again because USB connect worked unreliable and connection got lost all the time - ending up with a message that my TI has not been detected at all on USB... I had to reset my TI all the time - pressing ARP EDIT while repowering. This just helped a short time - then the same trouble returned
None of these things happens with OS 2.7.5
Access - what have you changed in OS 3.x with USB?...