Wireless router behind another router can't access the Internet

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Case Study - Wireless router behind another router can't access the Internet

Situation: The client has a Linksys BEFVP41 router connecting to the Internet. Every thing works fine. He just added another Linksys WRTP54G wireless router (behind the BEFVP41) for his wireless laptop. The laptop receive strong the single and correct IP. However, he can't access the Internet.

Troubleshooting: 1. Ping the wireless router OK.

2. No security setup to block the traffic.

3. Comparing the both routers, we found both routers are setup to use 192.168.1.0/24 range.

Analysis and resolution: You can't have two router using the same IP range in a network. In our case, we change the IP subnet to 192.168.254.0/24. After that change, the wireless router assigns another IP to the laptop and he can access the Interest.

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