Transmission disabling router intermittently

[druu]

Hi, recently I've been experiencing timeouts with my internet connection while having transmission running and trying to browse some local sites. I only discovered today that it was caused by Transmission (1.74). Not only does it kill the connection but disables the router completely. I have a Netgear DG834PN wireless router.

Basically I would be browsing while downloading a movie and intermittently the connection would timeout and not respond while browsing. I tried reloading the page countless times to no avail. When I closed transmission (which would take a while to shut down), the pages would load fine and I could now access my routers web interface.

Anyone else experiencing this? Could it be maybe only affecting Netgear routers? I'm also running Snow Leopard.

Thanks.

[Zork]

I'm having the same problem here. My internet connection drops (Safari, Adium, Skype, etc. AND Transmission stop working) at some point after I started Transmission. I tried both the 1.74 and the last build from the repository (9043).

I'm on Snow Leopard and I have a D-Link DI-524 router, to which I'm connected via ethernet.

[Zork]

I tried reducing the number of connections from 200/100 (global/per torrent) to 20/5. I still have the same problem.

[druu]

Same here. I really hate to do it but I'm using uTorrent until this is fixed.

[Zork]

It was already around those values. I lowered them even more without more success.

Besides, the problem also shows when I'm not uploading at all, just downloading at a 500kb/sec limit (set in the Transmission preferences), when according to Speakeasy's speed test, I have a 900kb/sec speed in download.

I updated to 1.75b1 and the problem is still there.

Thanks for the support!

[Zork]

Update.

1.75b2 didn't help with my problems.

I downgraded to 1.61 and everything is back to normal. Maybe there's something developers can look at there?

[jch]

1.75b2 didn't help with my problems.

I downgraded to 1.61 and everything is back to normal.

You have a brain-damaged router with limited space in the NAT tables, which are being overloaded by the DHT.

The proper fix is to dump your router and buy a better one (you may also want to send an angry letter to your router's manufacturer). Alternatively, keep the hardware and reflash it with a better firmware, such as OpenWRT, DD-WRT, Tomato, or whatever.

If you cannot fix your router, you can try disabling the DHT (look under Preferences).

--Juliusz

[druu]

What a silly response. Drop the router and buy another one because a program won't run properly? Don't be silly. uTorrent works flawlessly and until this is fixed, uTorrent it is.

[RobinW]

Please check this thread. The problems you are heaving seem similar and I think they are related to 10.6.

[jch]

What a silly response. Drop the router and buy another one because a program won't run properly? Don't be silly.

Router manufacturers are selling products that are suitable for web browsing and little more, certainly not for modern p2p technologies such as the DHT. Why is it silly to suggest that you vote with your wallet, and avoid such broken hardware?

uTorrent works flawlessly and until this is fixed, uTorrent it is.

µTorrent implements a number of hacks to rate-limit its network activity in order to deal with broken operating systems and broken hardware. I am not particularly keen on working out similar rate-limiting techniques for Transmission, and at any rate have no intention of doing it for free.

(The above is not a criticism of µTorrent — quite the opposite, I am very much impressed by the attention to detail of the µTorrent developers.)

--Juliusz