LAN failure coming out of standby

I've read some of the postings about this failure mode. This just recently

started to happen intermittently, now it is pretty reproducible. If I put my

computer 9 ( XP with the latest updates ) in Standby mode the LAN will not be

functioning when I restore operation. I have to turn it off, unplug the power

cord and wait 5 minutes before I can reboot it and have LAN.

I saw someone posting about a bad battery. My motherboard is about 3 years

old, so the battery could need replacement, but its hard to see why this

would have an effect. The battery seems to be working.

Any ideas would be helpful.

Arnie