Auto IP address detection failure

Robert W. King
07-10-2005, 01:55 AM
Hi folks!

I have an IBM ThinkPad A21m that can use with either a wired or a wireless
connection by swapping out the the PC Cards. The wired connection is a
D-Link DFE-690TXD CardBus card. The wireless connection is a D-Link
DWL-G650. My wireless access point is a D-Link DWL-2100AP which is
daisy-chained to a D-Link DSS-5+. The latter also acts as the port for the
wired connection.

My desktop machine dial-up modem connection is shared, so the ThinkPad IP
address should be If I have the ThinkPad to obtain an IP
address automatically, when using the wired connection, it properly
configures itself, and the ThinkPad can share files with the desktop and
access the Internet. However, if I use the wireless connection and attempt
to obtain an address automatically, the ThinkPad comes up with Obviously, that won't work. If I force the issue by
specifying an IP address of, I'm able to copy files back and
forth between the machines. However, I am NOT able to access the Internet
from the ThinkPad via the shared modem on the desktop.

I hasten to add that originally everything was working whether I was working
in wired or wireless mode. So I have to presume that I've mis-configured
something. But for the life of me, after a week of fooling with the thing I
can't figure out what I need to do to correct the situation.

Can any of you kind folks point out my foolishness and tell me how to fix

Robert W. King
I'm an ingenieur, NOT a bloody locomotive driver!
SnailNet: 19023 TV Tower Rd, Winslow, Arkansas 72959
BellNet: 479-634-2086
Web site:

Auto IP address detection failure