Hey,

Up until now I had been running straight off a modem via an ethernet port. I picked up a Linksys four port router (hardwire) because I wanted to do some online gaming with my PS3. When I hooked everything up, it works, but the connection is intermittent. The network manager shows that it disconnects and reconnects. It happens roughly every couple of minutes WITHOUT fail.

I'm running Fedora 8, completely up to date, it's an onboard ethernet connection (Realtek Semiconductor Co., Ltd. RTL-8139), Linksys four port router (BEFSR41) and a Motorola modem (2210-02). On other computers that I've set up, I've never had this problem. I'm not sure if this is a Linux specific problem as I haven't spent enough time with it on Windows to determine that. The short time I was on it in Windows, I didn't notice any problems.

All hardware is brand new, including the cat5 cables. All connections are snug... I double and triple checked. When setting up the router, there was a conflict of IP addresses between the router and modem. They both wanted 192.168.1.1, I changed the router to 192.168.2.1 so I don't think this is the culprit.

All help is greatly appreciated.

Thanks

Your PC may have difficulty correctly detecting the correct ethernet speed?

The DHCP lease time my be too short and reconnecting on schedule
try setting the network card duplex to 100Mb Full,
try a different port on the router
try plugging another device on the desk where the PC is.

my windows Laptop has a faulty network card and only works at 10Mb (not the original gigabit)
i've bought Cat6 certified cable (2 Metres) however it crashed (disconnected) every 20 minutes at gigabit
brand new doesn't always mean free from fault or capatibility problems

I've tried different ports and tried swapping out cables and it still happened. I did let it sit over night and hopped back on this morning and hooked the router back up... haven't seen any funny activity YET.

I know new doesn't mean not faulty. I've had my fair of problems like that, but I'm just about positive these are all good. The card is at full duplex 100mb and Fedora sees it as such.

As for right now, it's fine. I noticed this problem more when I tried downloading a torrent. I'll fire that back up again and see what happens.

Thanks

Ok, so it seems to happen ONLY when I'm downloading a torrent. As soon as I open one up, it starts going haywire. I canceled the torrent, closed out Azureus and it was fine. Just to see if it was downloading in general that was causing the problem, I'm currently downloading a CentOS .iso and it's downloading steadily between 450-600 kb/ps without any disconnecting.

Maybe this is an Azureus issue? Or maybe a router issue?

Thanks

p.s. Carl0ski, by any chance are you a fellow Pole?

p.p.s I made sure the dhcp client lease time was at it's max. So, this isn't the problem.

I just want to reiterate that this ONLY happens when my router is connected and I am downloading torrents. Otherwise, everything works fine. Online gaming on my PS3, internet browsing and downloading ALL work. When I fire up a torrent, it goes haywire. When I disconnect the router and hookup directly to the modem and download a torrent, everything is fine. No connection issues whatsoever.

Thanks

It turns out that it was a problem with BOTH Azureus and my router. It has to do with the max number of connections globally in Azureus and that conflicting with my router. However, when running utorrent through Wine, I do not encounter this problem. Not sure what they do differently, but it works fine now.

SOLVED!

edit: Keeping the max number of connections below 200 inside of utorrent stops the problem. If it's above that, the problem persists.

Azureus has Upnp on by default
utorrent does not

UPNP tends to crash my Linksys router also

P.S fellow pole??

The ski part in your name. A lot of Polish people's (Poles) last names end in 'ski'. Even though you live in Australia, I thought you might be Polish.

At any rate, I uninstalled Azureus. No more problem!

Thanks for your help