Wanna Chuck My Router Out The Window

I have quite a rare form of DSL, it's called IFITL. I have no modem. I do have a wireless router set up to use PPPOE authentication. And my MTU is fixed at 1492. I don't know if it has anything to do with the problem I am experiencing.

I've tried two different Linksys routers, one old and one new (WRT54GS & WRT54GS2) and they both have the same issue.

Intermittently, the internet light on the router shuts off and I lose all internet connectivity. If I try connecting via the routers control panel it won't work. The only way to fix it is to unplug the router, wait 30s and then plug it back in. However, it goes down a short while later same issue. The WRT54GS worked fine for the longest time.

According to my ISP, my internet is fine because if I directly connect my DSL cable to my computer and connect manually it works.

I am so frustrated because I need maximum connection reliability and these intermittent drops are a pain and cost me time.

Any ideas? I've already contacted Linksys but their boneheaded techs don't know tit from tat.

 

You may have already tried this but:

1. Frimware upgrade
2. Bridged mode
3. Have you set MTU manually to 1492 also on your Ethernet card?

EDIT: I found your posts on other forums about this matter, so I assume you've already updated firmware and tried different settings. My only question is have you set MTU manually on all your computers?
It's how you do it on Vista but it supposedly works on W7 too.
http://networking.nitecruzr.net/2007/11/setting-mtu-in-windows-vista.html

 

Try cloning your MAC address from your computer into the router and see if that helps. If they are doing some kind of MAC filtering it will correct the miss match.

 

that actually happens to me ALL the time, and I have cable internet. It's so frustrating.

 

Yep, first thing I did was update firmware, even for the new router which I have now returned. I cannot enable bridge mode because I do not have a modem.

I really don't see how manually specifying the MTU on my computer would change anything, the problem has to be with the router, after all it is the one who's internet light shuts off.

I have multiple computers and devices on the network, how would I know which one to clone?

 

Clone MAC of the computer that works connected straight to the service (without the router) you mentioned that internet works that way.
If multiple computers work connected directly- it's not MAC filtering.

As for the MTU- every router/PC on the network should have the same MTU.
It's recommended to set it up by IFTIL providers like i.e. Bell South- not my invention. Vista/Win 7 is supposed to set it automatically but that way you have no way of knowing if it did or not.

If bridge mode is unavailable disable NAT for testing- that's as close as one can get.

EDIT: Try changing your router's default IP from 192.168.1.1 (Linksys suggested- 192.168.2.1)

 

I have no experience with the type of DSL you have but one networking solution would be to have one computer connected all the time and up all the time while having the other devices share internet through the connected computer.. more of a temporary solution until you figure out how to get the router to work

 

Alright, I changed the default IP but I have left the NAT Loopback setting untouched at "Forwarded Only", I'm not exactly sure what it does, if my understanding is correcting disable it could present some security concerns.

I'm gonna test it out for a while now and see how it does. Thanks for the all the amazing help thus far guys!