Intel giving fits.

Machine: IBM 8090
P4 3.0GHz HT
1GB PC3200
Windows XP Pro SP3
Intel PRO/1000 MT Desktop Connection (onboard NIC)
Suddenlink Cable for the internet.

When machine is first booted up, everything goes fine. 5-6 hours later, shows as limited or no connectivity, but still shows as connected.
Have already uninstalled the driver and installed the latest from Intel for this card. Same version as I already had,so no gain there.
Everything worked before last Windows Update, but only one I took was a Security Update.
Driving (no joke intended) me up a wall trying to keep connected.

 

Go to add remove programs and remove the last security update from Windows and see if it returns to normal, if not post back and we'll try another route.
How old is you IBM/
Dock

 

Tried that. No change.
Removed the Intel driver and installed the one from IBM/Lenovo.
Still no good.
BIOS on the motherboard are the original and dated June,2005.