Very odd internet issues.

I just bought a 21.5" refurbed iMac. Worked great for a week and now for the past week or so, I cannot stay connected to either Firefox or Safari for more than 2 minutes before the browser starts "Looking up" the website and then it completely disconnects. I go into the network diagnostics while this is happening and I see that Internet and Server have orange dots next to them, then after a little while those dots turn red along with ISP's dot. I called my ISP yesterday and they said that everything on their end is good. I believe them because, I had been playing WoW and Warhammer Online since I got the computer and have played for up to three hours at a time, and I never had any disconnects or lag form the games at all. I even connected to WoW while my browser's connection was tanking to see if I could connect and I did just fine with no lag or disconnects. I even pinged some websites while this was going on and that worked as normal. Probably the oddest thing of all this, is that if I go straight from my cable modem to my computer I get absolutely no internet at all. I can only go through my router to get connected. I did call Apple about this and the only thing they came up with was for me to delete these com.apple.safari, and com.apple.mozilla files, but that didn't work. So, now I'm at a loss of what to do. I've restored my router back to factory settings and downloaded an update for it, played with IP addresses and DNS addresses and nothing is working out. With each day that passes the connection times to my browsers get less and less. My router is a Netgear WGR614 v.5 btw. This all seems to happen when I just go wireless with the iMac also. If there's anybody out there that can help it would be greatly appreciated.
TLDR: Internet browsers don't stay connected to internet, but I can play online games, and ping websites with no issues. Modem straight to computer does not work, have to go through router to connect. Called ISP and called Apple, but no solutions have helped.

Based on which device is configured to negotiate the internet connection with his ISP this is to be expected. For example, if his router were programmed to negotiate through the modem and establish the external IP and also negotiate with all the devices on his LAN and assign the internal IPs, then his Mac is only configured to get its internal IP from the router.
So, if he removes the router from the setup, then he would need to reconfigure the Mac to now negotiate directly with his ISP for its internet connection.
He does not mention having done any of that in his post. So an explanation of how the home LAN is setup and each device configured would be helpful in understanding what may be going wrong.
Dah•veed

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    Message was edited by: Olaf Dieckmann

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    YouTube Channel: http://youtube.com/lpsajuuk
    Follow me on Twitter @supersajuuk
    Solved!
    Go to Solution.

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    YouTube Channel: http://youtube.com/lpsajuuk
    Follow me on Twitter @supersajuuk

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