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Old 04-03-03, 09:43 AM   #7
pr0c
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Actually Andy i figured out the problem (i think..) and I'd like to discuss here so people that have similar problems can search the forums and see this post...

When i set my MTU to 1400 rather than 1500 i get almost normal internet performance. I'm not sure why but here is my setup. Nvnet -> LinkSys "network everywhere" router -> "cable" (its really a wireless internet thing..) modem.

The router defaults to 1500 mtu and maybe the problem is that with linux set to exactly the same size its causing problems??? I have no idea how the internals of networking work.

The problem that i'm experiancing is that I have to change my MTU to 1400 everytime i boot and the other problem i have is the RWIN, i cannot change it when i change the settings as suggested here http://www.psc.edu/networking/perf_tune.html#Linux it does nothing to actually change my settings!! (I set RWIN much lower than they suggested)

Does anyone have any ideas how to deal with this? I cannot even get "Path MTU Discovery" to turn on even when i set the file to 1... it turns back to 0 on reboot too!

This is so frustering =[
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