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Internet Connectivity: Vista SP1 and Sierra Wireless 881U

982 views 1 reply 2 participants last post by  JohnWill 
#1 ·
Have been experiencing major difficulties connecting to the Internet via Sierra Wireless 881U Device on AT&T network. I am using Sony Vaio VGN-NR220E.

The problems started with installation of Vista SP1.

Can connect to the AT&T Network fine - no issues there. Can connect using AT&T Client, Manufacturers Client, or by configuring the modem in DUN.

Specifically, the device always provides "local only" access to the network, but no Internet connectivity EXCEPT between the hours of 11:00 p.m. and 6:00 a.m. During these hours, everything connects properly with no different settings or changes being made.

When I attempt to diagnose/repair the connection through windows - get "ip setttings are invalid" message, and auto-repair (get new settings option and reset apapter option) do not work. The error message I get is

"cannot connect to dns server"

I have tried netsh int ip reset and netsh int ip resetlog.txt (per AT&T) and get "echo request" error - access denied.
 
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