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Is my internet modem dropping my network?

Posted on 2011-04-27
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Last Modified: 2012-05-11
I can't figure out why my wireless network will stop working when I shut down one of the computers connected to it.  I have tried 3 different new routers but it does the same thing.  I can see the network on the computers and it says it's working fine.  When I try to connect, there is no connection.  I think it is the modem.  I don't have any modems to try because it's a Comcast modem. Any suggestion?  I posted a similar question for the same reason and I have not been helped yet.

Thank you
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Question by:artismobile
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Expert Comment

by:Soulja
ID: 35478917
Your disconnecting is a LAN issue not an Internet/WAN issue, so I highly doubt it's your modem. Do you have wired devices? Are the wired devices still able to access the internet when this issue arises?
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Author Comment

by:artismobile
ID: 35479103
Main computer wired. Does not work.4 wireless computers on the network
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by:Soulja
ID: 35479118
I would have to say it is an issue with your router. What kind?
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Author Comment

by:artismobile
ID: 35479376
Bear with me. I'm on my phone because I don't have internet. Grrr! D link dual band now, Netgear two days ago and the same model netgear 20 days ago. Both dual N band. All do the same thing. I thought it was the netgear router, took it back for the same model then got this one. Since you think it is not the modem, i,m going to try to lower the security level since that's about the only think I have not tried yet. I'll advise
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by:Patmac951
ID: 35480074
Ok first question does the problem always occur when you turn off the main wired computer?  Or does it happen with the other computers too?
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Expert Comment

by:Patmac951
ID: 35480081
It sounds like you may have Internet sharing installed on your main wired computer or the router may not be configured properly.  Also what OS is the "Main" wired computer running?
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Author Comment

by:artismobile
ID: 35480317
Ok, I re- did everything and it's up and running for the time being. This is really odd.  It worked fine with the Lynksis for two years until about a month ago the lynksis router would not power up so I switched brands to the netgear. I went through 2 of the same netgear models and now this D link within this last month thinking it is the router.

So far, sometimes, if I turn off the main overnight, it won't work, or if I turn off one of the laptops. (so far the same one) or if I close the laptop for hibernation mode but only sometimes which is why I'm not sure that is the problem. All the computers will say they are connected but I can't reach the internet.  I have 2 windows 7, 1 windows vista, 1 windows XP and the main is Windows XP
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Accepted Solution

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artismobile earned 0 total points
ID: 35488033
I changed the security setting, got a refresh signal from cable and waited over night. I shut all the computers down and powered them back. No problems yet.  I'll wait overnight and see.
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Author Closing Comment

by:artismobile
ID: 35704597
Lowering the security setting on the router seems to have corrected the problem.
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