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Cable Modem/Router/Etc Woes

I

IndieSnob

Golden Member
I'm having one hell of a problem with my dns dropping out on my connection multiple times a day. The following is the equipment I'm running and what I've tried to do for troubleshooting:

Comcast Cable Internet/RCA Cable Modem
Netgear MR314 Wireless Router
Intel Pro 100 NIC on a Gigabyte GA-8IEXP Motherboard
3COM - 3C905B-TX 10/100 PCI NIC
I've tried letting the router give my pc's ip address'es and also tried just setting them static on each computer, no change there either.

I will be going to a few different webpages and then I get I.E. errors that server cannot be found. I can have AIM, IRC, or ICQ on and they still work, if allready signed on, but anything new I try to get to that has to be resolved by DNS is a no go. I have to unplug my router and cable modem then replug them in and I'm up again. Usually happens about 5 to 15 times a day. I've done tests on both nic's and even changed out with new ones, still no go. The one thing I can think of, but it's the last step I want to take because it takes so long to get one shipped is that the power adapter on my router is abit chewed up by a little mutt I had for abit. If anyone else here as any suggestion I would appreciate it.
 
If you need another power adapter you could probably pick one up at Radio Shack for around $10. Just a suggestion
 
I was thinking about that, just wasn't sure because I have had problems not finding adapters to match some things and didn't want to waste any money, as I've had problems with returns at radioshack in the past.
 
try a little experiment: take your router out of the equation for a day or two. just plug one of your puters straight into the cable modem, make sure your puters are set to receive their ip addresses from dhcp, and power cycle that modem (unplug the power for ten seconds). MAKE SURE YOU DON'T HAVE DNS SETTINGS STATICALLY SET IN YOUR PUTER! let it run for a day or two. if you still get the dns problems, the issue is in the modem. if the issue were with the isp, every customer would be bombarding them with complaints, and they would fix it fast, so that is not likely. if you don't get the dns problems, you know you have an issue with something on your end of the modem, probably the wireless router (we see that all the time!). also, examine the internal setup of your router to verify the DNS settings. your router should be set up to receive a dynamic ip from the isp through the modem (which acts as a bridge between your nic and your isps router) and this will supply your dns settings to your router. then your router will act as a dhcp server to your attached machines and should give out the info from the isp dynamically, including the dns servers.
 
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