In a network, using windows 95, explorer 5. Some of the machines(always the same few machines) occassionally have their Explorer hang until it says page can't be displayed. The only way to get it going again, besides a restart, is to run winipcfg then, release and renew the ip address (the leases are set for 24 hrs). Even though it renews to the same ip address, Explorer will now work. In internet tools/connections/lan settings, no boxes are checked. Why do they only get the hang occassionally, and is there any way to fix it. I have also reinstalled Explorer,to no avail.