Torrents killing TP-Link TD-8817

[grim]

I recently got a TP-Link TD-8817 to replace my old modem that was fried by lightning.

I've noticed that as soon as I start a torrent on my NAS that's running Transmission everything else dies.

It's like it can't handle the amount of concurrent connections. The Transmission is configured with 50 connections per torrent and 300 max connections, this surely shouldn't be a problem? It dies even with only one torrent running.

My old Netgear modem worked fine with it set to 100 per torrent and 600 max

The torrents only run at like 100-200kB/s on my 10Mb line so there's still plenty of bandwidth on the line, the torrents are slow cause of shaping.

I've already had Telkom recreate my port which didn't help.

Speedtest: http://www.speedtest.net/my-result/3235237307

I've already updated the modem with the latest firmware.

Anyone have any ideas what could be causing this or how to fix it?

 

[kidcolt]

ln my experience the TP-Link (while not a bad priced entry level modem, email & web) just does not have enough internal memory to handle the NAT TCP session tracking load that bittorrent places on the modem (*tons* of swarm connections).

You could try mitigate the problem by moving your modem into pure bridging mode and have your PC do the PPPoE connection or buy a better modem... I recommend Billion.

[Edit] PS. just because you limited the number of connections the app accepts on your side of the modem/link... that does not stop a greater number of connections connecting to your modem which the app rejects. That means your modem it still trying to track a great number of connections than you have configure on the app.

 

[grim]

ln my experience the TP-Link (while not a bad priced entry level modem, email & web) just does not have enough internal memory to handle the NAT TCP session tracking load that bittorrent places on the modem (*tons* of swarm connections).

You could try mitigate the problem by moving your modem into pure bridging mode and have your PC do the PPPoE connection or buy a better modem... I recommend Billion.

[Edit] PS. just because you limited the number of connections the app accepts on your side of the modem/link... that does not stop a greater number of connections connecting to your modem which the app rejects. That means your modem it still trying to track a great number of connections than you have configure on the app.

Yeah, currently the modem is dialing the connection, I'm going to try switch it to have my Netgear dial it and see if it improves the situation.

The Netgear still works perfectly fine except that it's modem is fried and it has a separate dedicated WAN port that can dial PPPoE connections

 

[MickZA]

You could try mitigate the problem by moving your modem into pure bridging mode and have your PC do the PPPoE connection or buy a better modem... I recommend Billion.

I reckon kidcolt is on the right track.

My old Netgear modem worked fine with it set to 100 per torrent and 600 max

Also use Transmission (on Fedora) and from experimentation I find 65 per torrent, 260 max works best for me using IPCop as router and a DSL-2500U in bridge mode

 

[grim]

Just an update on this, since I've switched from Afrihost to WA I've had no issues downloading torrents and browsing at the same time.

Seems like something with their ridiculous shaping causes DNS lookups to fail if you're running torrents at the same time.