Had a similar problem on my switched network using ICS when I moved the
modem to a different workstation, but the principles are the same since
routers and switches both have address tables in memory...

command line:

ipconfig /release

ipconfig /renew

However, this may not work for two reasons:

1. The router may not update the address table in its memory and may
require a power-cycle of the router to rebuild the address table.

2. The workstations have "cached" the default gateway as being the
computer name in the Workgroup that was acting as the gateway before. I
had to do ipconfig/ release and then use RegCleaner to get rid of
invalid entries, then do ipconfig /renew. It worked so I assume the
information is stored in registry keys.

In my case it took doing both 1. and 2.

Steve

LewMur wrote: