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Home Router Trouble

Posted on 2014-01-13
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Last Modified: 2014-01-16
The oddest thing.  My daughter lives in an apartment and has an internet provider that works.  When she plugs in her PC it gets a public IP address.  The access point has only one port and other than the AP handing out a public IP address, so far so good.  She bought a Belkin wireless AP.  Plugged it in and it didn’t work.  Different cables, different ports, crossover to WAN port, crossover to LAN port –nothing.  Wireless can connect wirelessly but no way out to the internet.  So, I bring the Belkin to my house with ATT AP.  Plug in the Belkin with no configuration and it works just like it is supposed to.  I connect with my iPhones/Pads, get to the internet through a private IP address provided by the Belkin through DHCP.  Plug in my PC all of the LAN ports one at a time, just perfect.  I configure the AP giving it a better password, DHCP range etc.  Worked great.  Wrapped it up with the same wires and took it back to her apartment.  It’s the same as before.  Does not work.  What am I missing?
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Question by:tangot2
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by:jhyiesla
jhyiesla earned 200 total points
ID: 39776637
Have you tried rebooting the AP in her apartment or, if you can get in to manage it, have it refresh it's IP information?  Could be that it's still stuck on using the MAC address of her computer.  Rebooting ought to fix it.  There was a time, when Internet providers tied their connection to a MAC address and when you put something new on, you either had to have the vendor reset that or you had to spoof the MAC in the new AP/router. Not sure that's done anymore, but if rebooting doesn't fix it you will have to look at logging into the AP or her Belkin and do some configuration.
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Akinsd earned 200 total points
ID: 39776669
I think jhyiesla meant Modem. Some modems save Mac Addresses of devices connected to them and has to be reset when connecting a different device.
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by:jhyiesla
ID: 39776692
I was making an assumption that the asker was calling whatever device his ISP gave him an AP since that was his terminology. While more likely it's a cable modem or whatever device Uverse uses.
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Author Comment

by:tangot2
ID: 39776727
Thanks.  We did reboot.  It is a cable modem.  I don't think it saved the MAC address as her PC connected and then I used my laptop and it connected.  It just seems that it will not NAT on the WAN side at her apartment but it will at my house!  Crazy.  Is there a setting in a vendors cable modem that prevents NAT translations to a particular device?
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by:jhyiesla
ID: 39776749
Typically the cable modem should give a public IP to the WAN side of the AP/router and then the other side hands out local IP's to the inside devices. If it hadn't done so at your home, I'd be suspicious that DHCP isn't turned on inside the Belkin. It might still be a good idea to double-check that. You might also try a ipconfig /release and an ipconfig /renew on her computer to see if that gets the Belkin to give her an IP.
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by:Darr247
Darr247 earned 100 total points
ID: 39777363
What model and version is the Belkin?
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by:Akinsd
ID: 39777730
If it is a cable modem.

Then you need to reset the modem.
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Author Comment

by:tangot2
ID: 39782013
I will try all this, this weekend.
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Author Comment

by:tangot2
ID: 39785546
Well, we will never know.  Daughter got frustrated and threw it out.  Thanks for all your time and hints.  I'm spreading the points.
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Author Closing Comment

by:tangot2
ID: 39785554
Please remove this enquiry.
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