Internet browsing blocked at firewall

[StNixon]

Hi: I have just set up an old SOHO 2 to utilize a new T1/Phone line. The SOHO is set up to supply DHCP and uses static IP address.
The T1 works fine if I supply the PC with a public IP address.
I can not browse the internet from a PC on the LAN side, but I CAN ping & Tracert web sites on the internet (both by IP or URL).
I can browse internal web sites (and the SOHO admin).
This problem is for both Firefox and IE8. The SOHO logs show IP Spoof Detected from my PCs IP some of the time.
Almost everything is at default settings.
Any Ideas

 

[TechyMcSe2k]

Did you use the Sonicwall built in Setup Wizard to get started properly? Cable Modem is in X1 and Lan is in X0?

http://www.samtechconsulting.com

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[StNixon]

Yep! in the right spots. I finally fixed it, buy adding a second switch to the mix. One for the LAN and a dedicated one for the WAN side (between the switch and the router).