I have a similar problem
MT882 and UL900 plan at Nellore, AP
I have reset the modem so auto dial is presently not configured and i connect by dialing from
windows
Here is how it goes
Turn on the modem, green light starts blinking after about half a minute and then gets steady, but sometimes it goes off after a few seconds and then the blink to steady process repeats
sometimes its steady and i can use the net for hours but sometimes only for a few minutes and sometimes it goes on and off every few seconds
i have not observed any pattern in this, it happens any time of the day
there is something else which adds to the problem, the modem behaves like it has been turned on and off except that the power light stay always on and the on/off procedure is executed. (as if i have just turned on the modem, but the power light never goes off)
any stetting changes stay intact so this is not the reset procedure
here is the summary when it connects
http://img144.imageshack.us/img144/3293/summaryet3.png
and here is a print of ipconfig
http://img292.imageshack.us/img292/8675/ipconfighf4.png
i have configured the ip settings manually and set the
DNS servers on the PC to open DNS
all modem settings are factory defaults
and btw thr is a lot of disturbance in the phone line but this too happens only sometimes not always
someone pls suggest something
🙁