pc showing "local area connection is disconnected" then "local area connection connected"

[hlw8888]

this happens a few times since i upgraded my pc. i using xp sp3 and using onboard lan.

onboard lan: Realtek RTL8110SC 100/1000 Gigabit Ethernet controller

could it be driver problem since i use the latest one rather than the one provided by the mobo?

[mike911]

could be lan port problem, or lan cable problem