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My router disconnects when I plug a second ethernet cable

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  • Routers
  • Ethernet Card
  • Networking
Last response: in Networking
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July 10, 2014 9:29:38 PM

Hello,

For the last 3 years I have been using a Linksys E2000 router with no problems. A couple of weeks ago I upgraded my home built computer with a new motherboard, cpu and a SSD in place of my old HDD. I performed a new clean install of Windows 7 (the same OS I had been using before). I plugged the router backed and it seemed to work fine.

As usual I had my desktop connected at ethernet port 1 and my Sony Blu Ray player (which I use for netflix) connected at ethernet port 3. Last week I installed a new printer (Epson WF-3540) which I connected wirelessly and still no problems.

A couple of days later I noticed I had no internet connection. The Network and Sharing Center showed that I was connected to an unidentified network. When I checked on my Iphone and laptop computer I could still see my wireless network with the same name as always but could not connect to the internet. When I tried to get into my router from my desktop computer, which is connected through ethernet port 1, I could not. It was as if the router were not there. Tried the Cisco utility and showed as if no router connected. Tried to get through the 192.168.1.1 and did not load. I eventually noticed that if I disconnect the ethernet cable for the BR player, after 10-15 seconds the network is identified again and I have internet. If I reconnect the ethernet cable for the BR player back (no matter in which port), in about 1 minute I lose internet connection and network shows as unidentified again.

So to summarize: the router and internet connection dissapears from my desktop when I connect the second ethernet cable. I could still wee the network wirlessly but with no internet. When I disconnect the second ethernet cable I comes back fine. It did not do that before (it worked fine with both ethernet cables -- desktop and BR player -- connected).

I have searched the web in search of a similar situation and a solution but could not find any. Thanks for any help you can provide.

More about : router disconnects plug ethernet cable

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July 11, 2014 7:21:35 AM

I would try to replace the cable to the Blu Ray Player. Also can you see what IP address the Blu Ray player has? It sounds like it may be getting the same IP as your default gateway (router).
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July 11, 2014 2:43:26 PM

Thank you, I will try that. How do I find out the ip address for the Blu Ray Player?
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July 11, 2014 3:06:52 PM

temetito said:
Thank you, I will try that. How do I find out the ip address for the Blu Ray Player?


You should be able to go into the menu on the Blu Ray player and find the network settings.
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July 21, 2014 6:20:56 PM

abailey said:
temetito said:
Thank you, I will try that. How do I find out the ip address for the Blu Ray Player?


You should be able to go into the menu on the Blu Ray player and find the network settings.



As a matter of fact, the Blu Ray Player's network settings seemed to have been the problem. After I reset them everything worked fine again.

Thank you very much!
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