In January 2008 I began using USB720 modem. Worked beautifully 2.5 years, had to replace it last August. The replacement UML290 has been a pain ever since. Constantly loses connection.
I live in a state (VA) that does not have 3G.
Verizon tech support has tried everything, I finally asked for a new device. That didn’t work any better. I updated to 7.7.1.5 and thought that would solve the problem, the Access Mgr screen had a big red 3G on it. Yes!
NO. Today it’s mostly 2G, constantly dropping the signal and going dormant.
It is my uneducated opinion that corners were cut somewhere, making the UML290 inferior to the USB720. Having Vista OS and living in a rural area probably don’t help, either. I'm not a technie, so don't understand half of what I read on these boards, but I'd sure like to know if anyone else has had this nightmare.