Sonicwall firewall configuration

I have a Sonicwall firewall. I want the Sonicwall to go from an Embarq dsl modem (address 10.0.0.1), to a switch. The switch connects company computers as well as a wireless router. I ran the configuration wizard and the Sonicwall gave itself a wan address of 10.0.0.12 and I assigned a lan address of 192.168.3.1. When I connect the Embarq into the WAN port on the Sonicwall, and the LAN port into my laptop I get internet and everything works well. If I connect the Sonicwall LAN port into the switch internet connectivity is loss and the company users lose internet. How do I connect the Sonicwall to the switch and maintain internet connectivity.
 
Dhcp

Everything is good! I had thought my switch was unmanageable, turns out it is! It had DHCP Turned on. So I turned off DHCP on the WAN port of the Sonicwall. If a moderator could mark this SOLVED that would be great
 
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