Comment 32 for bug 155393

Unfortunately the problem isn't solved in any case by upgrading the glib6 nor by disabling the IPV6 protocol I think.

I have access to two different ADSL networks, a slow (512 Kbps down/128 Kbps up) and a faster (8196 Kbps down/512Kbps up). On the faster there seems to be no problem at all, and on the slow the problem seems to exist. I use the same 2 laptops, with different Wireless NICs on both networks, and have used dual boot for testpurposes on both. On Gutsy the problem exists, but on the second operating system no problem is present, on any of the two networks.

On the slow network, using adept upgrading/downloading packages seems okay at first, but after a short time speed drops from 40-50 to nearly zero Kilo Bytes per second, and stayes there for a long time. Sometime the speed returnes to the high values (30-50 KBps) for a while again, but drops down again (1-3 KBps). Returning the computers to the faster network, every thing is okay again.

Under a upgrade, I've used <dig> to resolve Internet hostnames not resolved in the session before (between reboots), an this isn't an issue on neither of the two networks.

Using a Internet speedtester (HTTP down/upload to a ISP server) seems to have same result in Gutsy on the slow network as with the adept upgrade, works but seems unstable (speed-jumping) the first time, and a following second test the speed drops to nearly nothing. But on the secondary OS the test is okay five or more times in a row.

I've submittet a tcpdump from the slow network on a okay but unstable first downloadtest, and a dump from the following test with near to zero download speed. (What seems odd is that upload is all okay every single time, no matter the downloadspeed).