We are using a ZyXEL 662HW VPN router and ZyXEL G-302 PCI adapters.
We have 5 work stations on the network and all are working well.
All five work stations are running Windows XP Pro.
Problem: Two of the work stations have activity on the little monitor symbol
in the bottom tray. The activity is approx. every 5 sec. for approx. 1 sec.
This activity is with no applications running on any station and none have internet explorer active.
I have looked at the task lists and all are empty.
This activity makes the network slow and intermittent.
How can I tell what is causing this activity?