Symptoms: Your Linksys (or potentially any other consumer-grade router) will not obtain an IP address via DHCP from your ISP’s DSL gateway/router. The status of the WAN interface shows 0.0.0.0 as the IP address or you receive an error message while trying to renew the address.
Problem: Both devices are likely on the same subnet. Out of the box, many ISP-supplied internet gateways have a built in router that has a LAN interface with the address 192.168.1.254. Several brands of consumer routers come pre-configured for this same subnet. (ex. Linksys routers are always configured as 192.168.1.1). Many routers simply will not let you route from 192.168.1.0/24 to 192.168.1.0/24. This is probably a good thing.
Solution: Change the LAN IP of either device to a different subnet. I usually change the DSL gateway/router to 192.168.2.1.
-n
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Chris Miller says:
September 16, 2012 at 8:49 am (UTC -5)
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