I am running a SBS2003 server and domain with a SonicWall TZ190 Router/Firewall with WWAN failover. The WWAN is using a Sprint EVDO (Sierra 595) PCMCIA card. I want to have WAN redundancy usingthe SonicWall router so that when my Verizon DSL goes out, my domain will still have internet service.
The TZ190 is failing over just fine - no problem there. My issue is that eventhough the SW fails over properly, I lose internet on the server and workstations when the WWAN connection is active. If I configure the workstation's DNS manually, I get internet service. When I use auto assign, I get no internet.
I have tried specifying various DNS IP's (Verizon, Sprint, Open DNS) without success. Something is preventing the SBS from handling DNS correctly and I am out of ideas.
Bill
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