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Modem or Router is not working properly - not sure which


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#1 Jay_is_bored

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Posted 11 October 2016 - 01:25 PM

First, I'm not sure if I'm posting this in the correct forum. Anyway...

 

I pay $10 a month to rent the cable company's modem with built in router. And it happened that a guy on craigslist who owns a computer repair shop gave me crates and crates of all sorts of free computer stuff. Many routers, modems, fans, power supplies, graphics cards, wires, etc.

 

So I unhooked my modem/router from the cable company, and hooked up another random modem through ethernet to my computer, to make sure it worked. It worked fine. Then I added in a router. The coax from the wall was connected to the modem, and the modem was connected to router through ethernet. And I tried connecting the router to my computer through ethernet, and through a wireless connection. Neither worked. My computer recognized the router, but would not connect to the internet.

 

Is this probably operator error? It's been quite a while since I did this stuff.

 

Help would be appreciated. Thank you =)



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#2 mjd420nova

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Posted 12 October 2016 - 02:24 PM

I would first list the mfgrs and model numbers, visit each web site to get the address and default password for each.  That will allow you to get into each setup and allow WIFI and cable internet links.



#3 Jay_is_bored

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Posted 14 October 2016 - 10:56 PM

The modem I'm trying to use is an Arris SURFboard, model SB6121. Hooking it directly to my computer with an ethernet cable allows me to connect to the internet.

 

The router I'm trying to use is D-Link, model DIR-655. When I connect the router, my computer recognizes it, and I'm able to connect to it. But it says there is no internet access. I did the diagnostic thing, and it says "Wireless network connection doesn't have a valid IP configuration."

 

I checked the connections to make sure I had it connected properly. The power cords are connected. The coax from the wall is connected to the modem. The modem is connected to the router with an ethernet cable, and is plugged into the "internet" port. Another ethernet cable is connected from one of the other four ethernet ports to my computer.

 

Also, it seems that even though I have the router connected with an ethernet cable, the computer is still just using the wifi instead.






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