Packet loss when limiting download speed

[Martin]

Img1: No download limit, no packet loss > http://home.no/gertin/bw1.png

Img2: Download limit at 130kB/s results in major packet loss, even on the local network > http://home.no/gertin/bw2.png

All my Advanced Settings are at default except for diskio.flush_files which is set to 'true' and diskio.write_queue_size which is set to '8192'.

[abbad0n]

Is there any advantage to setting your queue size multiple of 2?

[Martin]

It reduces the number of writes to the harddrive.

[abbad0n]

Thanks, I'll go change it now.

[1c3d0g]

You have a "NAT Error", Martin. This could be caused by a number of things, so you'll need to tweak your network until you get "Network O.K.". Have you portforwarded correctly? :/

[Martin]

My ISP doesn't allow me to forward ports.

[silverfire]

I'm pretty damn sure that port forwarding is done on your side, unless your ISP actively blocks ports.

[11:42:26] * Network name : NO-HEMNEKRAFTLAG
[11:42:26] * Infos : Hemne Kraftlag AL
[11:42:26] * Country : Norway (NO)
[11:42:26] * Abuse E-mail : abuse@banetele.com
[11:42:26] * Source : RIPE

The network consists of more than 12,500 domestic route kilometers (km) of fiber, from which we provide capacity and communication products and services based on DWDM, SDH and ADSL/SDSL.

I may be wrong on this, but I highly doubt that they'd block ports on DSL or fiber service lines. Throttle maybe, but I doubt they'd block.

[1c3d0g]

So you're telling me, when you forward a port in your modem/router, you lose your connection? Or can't you even go into your network setup? :/

[Martin]

My ISP controls the port forwarding. We (the customers) are not allowed to login to the modem. Believe me, I reset the modem once and they cut me off.

[chaosblade]

Oh noes, lame ISP disease spreading over to norway.. QUICK, SEAL SWEDEN OFF!

[Martin]

Yeah, I know. I'm gonna change soon.

[1c3d0g]

My ISP controls the port forwarding. We (the customers) are not allowed to login to the modem. Believe me, I reset the modem once and they cut me off.

God damn! And I thought I had it bad... :/ That really sucks.

[Martin]

It really, really does.

[paritybit]

Not sure what is going on there but for uTorrent to limit download speed I would assume it would have to drop packets as it cannot control incoming traffic. However if it drops a few packets I believe that flow control should kick in a slow things down _basically_.

Not sure why you are experiencing packet loss like that though.