We're running DNS/DHCP on Netware 6.5 sp6.
After booting, Windows XP workstations exhibit the following:

you can ping netware dns servers
you can ping the default gateway
you can ping the sonicwall
you can ping external dns servers
you can ping
you cannot ping,, etc....

This leads you to believe you have a DNS resolution problem.

If you "repair" the network connection everything behaves properly.

What could be causing this?