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Linksys WRT110 Wireless router with Comcast IP Gateway

Medium Priority
Last Modified: 2013-11-09
I have a comcast business gateway with a Linksys WRT110 router connected.  I have 3 laptops connecting wirelessly to the router.  They all have great signals and can connect to the router not problem, but cannot connect to the internet.  It seems that the connection between the two routers is not working.  I have connected directly to both routers.  Connecting directly to SMC, I can get a local ip from that and get to the internet, however connecting directly to the Linksys I can get a local ip, but no internet again.  I'm confused.
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Disconnect the Linksys from the Comcast router.  Connect your computer to the Comcast router and browse the Internet.  Then go to the command prompt on your computer and write down the ip address, subnet mask, and gateway address.  Get the DNS as well.  Use ipconfig /all at the command prompt.
Next, while the Linksys is still disconnected from the Comcast router, connect your computer to the Linksys and do the same as above.  The only thing that you should not see is the DNS info.  Write down the information as well.
Now compare the two sets of addresses.  Are they the same?  If they are, then you will have to change the LAN address of the Linksys router.  Once that is done, you can reconnect it back to the Comcast router and surf the net.
If you are still un able to browse, then you will need to log into the Linksys and write down the WAN (Internet) addresses that it got from the Comcast router, and then post all of the information here for us to evaluate.


When connecting to the Comcast router I am getting a 10.1.10.X address (77 specifically).  When connecting to the Linksys router I'm getting a 192.168.1.X address (103 specifically).  Both connections get me a DNS address of  My linksys router gets a 10.1.10.X address just fine from the Comcast router.

With your Linksys is connected to the Comcast router, go to the DOS prompt and see if you can ping either of these addresses:
ping www.yahoo.com  
Post results.


I won't be able to until this afternoon, but will.  I cannot ping www.yahoo.com, but never knew the IP so never tried that.  However, I have thought DNS.  I'll let you know a bit later.  Thank you.
If DNS turns out to be the issue, just find out from Comcast what DNS ip addresses you can use, and manually put them in your PC.

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I ended up doublechecking all DNS, but ultimately replaced my wireless router with a DLINK model and everything is working great.  Thanks for the help.
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