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Ive got one for you and if you can get it working. UPDATED

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I agree with ch33zw1z. Start over and tell us *everything* you have, including all devices that connect to the network and how they connect(wired or wireless). I wasn't sure from your posts if you have both a router and a standalone switch or just a router with a built-in switch?

Another idea I had was if you had a computer that might be causing the problem by being connected to the network using both wired and wireless interfaces.

I get the feeling the problem is probably something software related in your desktop PC. Anything you installed after doing a fresh re-install could be interfering with the network. I've seen it happen. It could also be malware on the PC.
 
Swept for malware. Unplugged my sons computer and had him wireless. Got a Modem/router then to a switch. Happens right after a fresh install, doesnt matter, all computers, even the fresh install, still needs me to put in the google dns to go on line, and again this is with ALL computers needing the google dns to go on line, wired or wireless.

Ive got to pick my oldest from work, and Im still online but tomorrow when I fire up my pc and it doesnt work I will try from scratch and let you all know whats hooked up wired and wireless.
 
funboy, get the Model #'s off the modem and the router and post them. Then we can help you make sure the network is configured correctly, then move on to the problem PC and the DNS issue.
 
The modem is a router modem in one and its a Motorola NVG510. The switch is a trendnet, but I cant get downstairs to get the model number because Im disabled and hurts to bad to go up and down the stairs. If I can find the bill, I think Tigerdirect, I will post it up.

Again guys just to be clear, this was happening with 3 different router/modems and 3 different carriers, and it doesnt matter if I use the wire from my switch, or come right off the back of the router/modem. And it also doesnt matter if I have a fresh install or not, it fugs up unless I do the tricks I mentioned, then I can get it to go online. Other then that, no dice.

This would not be because of that virus the government took down causing some people to lose internet? I swept for it before they did whatever and all my computers passed.
 
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Ok, so you have two issues. DNS is a problem for everyone, and the PC has an ethernet problem.

So start with one of the computers that only has a DNS issue to troubleshoot the problem. Unplug the modem and let it sit for a few, and when you plug it in give it a few minute to boot. Then plug in the computer to the switch and let it get IP info. Check your ipconfig's and pings...and if the DNS is still a problem, call ATT, unless you have another ATT approved Modem/Router lying around. If not, work on it with them. If level 1 can't help you, don't let them bs you off the phone.

For the PC with ethernet problems, What is the current hardware config?


When you say "forced to buy", did you actually purchase the device or are you paying monthly for it. How long have you been on ATT with this modem/router?
 
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Hate to be a dick but Im going to have to wait till Monday before I can dig more into this. My family is home and I wish to spend time with them, plus on monday I will be the only one home so I can give this my full attention and turn on and off pcs without taking them off line while home. I hope you understand, but I will for sure update on monday when I am free and ready to dive into this further.

Jay
 
My PC specs, went nuts with the cc:

Windows 7 Ultimate all updates applied
GIGABYTE GA-990FXA-UD3
16gigs of kingston Hyper blu 1333 ram
AMD FX8320 at 4.4
Asus Xonar D2
Gigabyte AMD HD7970
512mb SSD
LG BR burner/player
LG BR/HD DVD burner player

Whats connected to the Modem/Router:

Direct tv-My PC-Sons PC Hard wired at the switch

Samsung Smart TV-wire going to the switch-Onkyo TX NR809-Netgear MP101 all wired to the back of my Modem/Router

Other sons mini PC, wifes laptop-my laptop-Wii (2 of them)-360's (2 of them)-Epson Workforce 840-3 smartphones connected to the wireless side of the Modem/Router.

I had some time to myself so I thought I would throw this up here now.
 
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Did you add a wired network card to your desktop PC, or do you just use the onboard ethernet?

That's a ton of devices on your network, any one of which might be causing an issue. Have you ever tried disconnecting all wired devices other than your own desktop PC to see if the problem goes away? Have you checked those devices to make sure they're either using DHCP or don't have a static IP address that's the same as what your desktop PC is uing?
 
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funboy6942 said:
My PC specs, went nuts with the cc:

Windows 7 Ultimate all updates applied
GIGABYTE GA-990FXA-UD3
16gigs of kingston Hyper blu 1333 ram
AMD FX8320 at 4.4
Asus Xonar D2
Gigabyte AMD HD7970
512mb SSD
LG BR burner/player
LG BR/HD DVD burner player

Whats connected to the Modem/Router:

Direct tv-My PC-Sons PC Hard wired at the switch

Samsung Smart TV-wire going to the switch-Onkyo TX NR809-Netgear MP101 all wired to the back of my Modem/Router

Other sons mini PC, wifes laptop-my laptop-Wii (2 of them)-360's (2 of them)-Epson Workforce 840-3 smartphones connected to the wireless side of the Modem/Router.

I had some time to myself so I thought I would throw this up here now.
Click to expand...

Power Supply in PC?

that's quite a bit of traffic over the network. you need start with one device, and get it working, then add one thing at a time.

Again, if DNS issues persist, then pursue with ATT..
 
funboy6942 said:
Samsung Smart TV-wire going to the switch
Click to expand...
There was another thread on here about someone with a Samsung Smart TV, when the TV was turned on, he couldn't connect to the internet with his PC. Could this be a common issue here? Let me see if I can dig up that thread.

Edit: Here:
http://forums.anandtech.com/showthread.php?t=2297706

Edit: How long ago did you claim this started, OP? And how long have you had the Smart TV?
 
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I think I found what was giving the problem. So far I been on line for going on 3 days, no having to put in the DNS code, and, as I knock on wood, hope it is fixed and youre not going to believe what it was. I feel stupid(er).
 
funboy6942 I'd love to know what was the problem. If we know what caused the problem we might be able to help other people in the future who experience the same issue.
 
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I will. I want to give it a few days but so far all is working. No yellow ! and I dont have to use the google dns code or do any enable disable crap. I will update in a few as I make sure what I did took care of it.
 
i kinda skipped through this last page, lotta good advice, i have a lot of experience with the crappy moto modem. you shouldn't be using this as a router. there isn't a bridged mode BUT you can configure it to run a router behind router config. that should be your first step.also you should mention what dns your wifi is getting since you stated that wifi can access but LAN cannot.
 
OK, Im going to go out on a limb and say I fixed it. What was it you ask? How about when I wired in my 1st gigabit switch I plugged in my Linksys router to it, and didnt think nothing of it. TILL I was asked to do a list of what was all hooked up and I went downstairs and looked at what all I had going into the switch, and looked to my left and went "no fucking way". Since unplugging it and telling my oldest to hook up his devices to the att router/modem and get off the Linksys, I have not had to put in the DNS on any of the other devices, wired or wireless, and I have yet to be kicked off the internet (Knocks on wood still).

But yeah, looks as though my router I had plugged into the system was the cause. I thank everyone for all the great ideas for if you didnt force me downstairs to check where all my wires were going, I would of never remembered that old ass router been hooked up and making everything go nuts.

THANK YOU!
 
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So you had two routers plugged into your switch, both the AT&T router-modem you knew about and the Linksys that you forgot?
 
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