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Diagnose And Repair SOHO networks: Page 3 of 17

Important: Using a crossover cable to connect two computers together is not recommended! Crossover cables exist for the sole purpose of connecting one hub/switch/router to another hub/switch/router. All other uses are not recommended. More details can be found on the Linksys Knowledge Base.

Four Things to Do Before You Begin Diagnosing

1. If any firewalls are installed on any of the PCs, uninstall them. This includes Zone Alarm, Sygate, Kerio, Norton Internet Security, Zero Knowledge Freedom, Cisco VPN Client, F-Secure, McAfee Firewall, Trend Micro, etc. In many cases, disabling the firewall is not enough; you have to actually uninstall it. Do not install or re-install the firewall until after you have the network functioning properly.

2. Ensure that the lights on the hub/switch/router are on for each port that a PC is plugged in to. Also make sure that the lights are on for the Ethernet jack located in the back of the PC. If the lights are not on, try resetting the router, different Ethernet cables, and different ports on the hub/switch/router. Be aware that some routers and broadband modems may have pause buttons. If a pause button does exist, press it to un-pause the router.