Go
here for the fix if you are experiencing this issue.
I have experienced this problem on my little Thinkpad 240 laptop that I use as a poor man's EVDO router. Believe it or not, it makes for an extremely portable "Internet hot-spot on the go".
Sometimes when the Novatel NDIS adapter 'falls asleep' on the receive side, I have to reset the connection. This only happens rarely, but before this fix was installed, DNS resolution of the ICS clients would fail unless I hard-coded external DNS servers on the client systems.
Of course, the hard drive on the Thinkpad has an expired warranty and is an IBM DeathStar with bad sectors, so it is only a matter of time I have a massive hard drive failure. I have a system image backup for when that day comes. I've been saying that for the past 2 years.
Now that I've mentioned it on here, I am sure it will fail within a week.
When that day comes, I can roll out a beta of the Forefront Threat Management Gateway for our house.