Deluge Stops All Other Network Activity

[h3rne]

Hello:

I'm loving deluge, but I find that whenever I have it on, my web browsing, mail checking, and whatever else, is suddenly ground to a halt.

Steps I've taken to diagnose myself:

- I reset all my settings to the default, same result
- I checked out the FAQ and read the section on Bandwidth tweaking and set my settings to something pessimistic (50% of total download and upload)

I'm not sure what else to do. I've currently got Deluge running on a Gentoo server that's always running, but I'm currently shutting it down during the day and reactivating it at night when noone's using it.

I'm running deluge 1.3.0_rc2 from the ebuilds on Gentoo. Of note, is that this problem seems to occur even when Deluge isn't downloading things (or uploading things) screamingly fast: I've seen the network choke when I'm only getting 50-70 KB/sec on download and 0-10 KB/sec uploads.

Any help would be appreciated. I'm thinking at this point I need to find a decent QoS router to prioritize web traffic better, but I'm not sure if even that will help.

[neufsix]

I have the same problem. Is there a solution ?

[h3rne]

I can't speak to your problem, but I've diagnosed what I believe to be mine.

I'm using an ADSL line, and my ISP provides me a unit that acts as a router and a modem. Reading the logs on the device, it appears that whenever bittorrent is running, it floods the NAT table and the device runs out of memory, at which point it starts blocking new connections.

Unfortunately this device converts from a telephone signal to one that can be broadcast over Ethernet, so I'm stuck with the terrible device for now. I've tried to rate limit my outbound connections, but it appears to be choking on the inbound ones, and as I understand it; I'm not able to shape my inbound flow (and trust me, I've tried to no avail).

Anyone have any ideas or suggestions? Besides switching ISPs?

[johnnyg]

You could try lowering the number of connections, that should prevent the table from filling up.
Also you could just buy a decent modem/router

[h3rne]

Unfortunately I can't replace the router. It's supplied to me by the ISP, and it's necessary to bridge from telephone to ethernet.

I've tried lowering the connections and rate limiting the speed to no avail.

I'm currently stuck at simply turning off deluge during the day, unfortunately. If I find a different way of doing it, I'll post.

[h3rne]

Just in case this helps someone else out (or better yet, uncovers a fixable issue), I've found a partial work around.

My (crappy-but-mandatory) router has a setting on it for UPNP that was unchecked, entitled "Enable Automatic Cleanup of Old Unused UPnP Services". Checking it still causes the network activity to freeze up from time to time, but once deluge is done downloading, everything returns to normal.

I'm not sure what the culprit is here at the heart of it - for all I know my router just *is* that crappy, or maybe deluge is going very port happy with it's UPnP based forwarding routines, or what - but this somewhat mitigates my issue. I'm going to try disabling UPnP all together from deluge and just port forwarding manually - which would be a shame. UPnP is so beautiful when it works.

If I find anything else out, I'll forward the information along.

[ccie]

I was actually just experimenting with settings earlier today because of this issue. What I did was statically configured the incoming ports instead of using random. On my router, I configured port forwarding for those ports to my inside IP address. So far I haven't had any issues.