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Problem accessing router settings

By Reebok128 ·
Hi All,
I've searched TR's forum for an answer to this question, but none quite match up with my problem. If I missed it somehow, please direct me to the page. I have a Linksys WRT54G router running the HyperWRT 2.1b1 +tofu13c firmware. I also have Time Warner's road Runner as my ISP. Here's the problem. I successfully set up the modem to work with my router and now have internet access. The thing is, I can no longer access the web interface for my router. If I connect the modem directly to my computer, I have no problem accessing the router's web interface, but the minute I connect the modem to the router, I lose access to the web interface. Now, I did notice something odd. When the modem is connected directly to the computer, the ipconfig screen shows the Default Gateway address to be 192.168.1.1, which I know is the default IP address for Linksys routers. However, when I connect the modem to the router, the Default Gateway suddenly changes to 67.11.16.1. Typing this second IP address into my browser doesn't bring up the router's web interface. Any ideas on how to regain access to my router while my modem is connected? Thanks for the help.

Mike

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Linksys WRT54G router

by SLHINC In reply to Problem accessing router ...

Make sure the modem in connected into the WAN port and the computer is connected to a LAN port. If nothing else, reset to factory defaults and start over. Is DHCP setup for the LAN side? This is a standard configuration as should work out of the box.

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by seanferd In reply to Problem accessing router ...

<blockquote>When the modem is connected directly to the computer, the ipconfig screen shows the Default Gateway address to be 192.168.1.1, which I know is the default IP address for Linksys routers. </blockquote>

It is also the default IP for the LAN side of many routers and gateways. Note that this IP is in private address space.

<blockquote>

However, when I connect the modem to the router, the Default Gateway suddenly changes to 67.11.16.1. Typing this second IP address into my browser doesn't bring up the router's web interface.</blockquote>

That is your modem's public IP, in public address space, and would not be used for accessing the modem at all*, let alone the router. (*Unless the device were configurable and configured to be accessed remotely, and you attempt such.)

<blockquote>but the minute I connect the modem to the router, I lose access to the web interface.</blockquote>

Assuming that you are connecting these correctly as SLHINC notes, you may have to assume that the default IP is no longer valid, and another IP has been assigned via DHCP to the LAN side of the router - it is just as likely that the modem takes 192.168.1.1 as its own LAN IP.

So, all correctly connected and configured (you do usually have to configure these setups, not just plug things together - see your user manuals) , you run
ipconfig /all
from a command prompt to see the default gateway for the computers, which should then be the router. At a guess, I'd think 192.168.1.2 is a likely candidate.

Don't forget to reboot everything after connecting and configuring the network, or one device may not necessarily find another properly.

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