Hello Evan,

Just curious...what is the model number of the router/firewall? I installed a Linksys BEFSX41 here 2 weeks ago (Etherfast Cable/DSL Firewall Router w/4-Port Switch), and we use Outlook clients.

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>Outlook is already set up correctly since it works when I remove the switch. Adding the switch causes it to stop working. The method you described will not work since the problem lies with the configuration of the switch.