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Old 04-03-2005, 02:01 PM   #1
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Strange Modem Behavior (56k)

So I've been toying with Ubuntu (5.04 Preview) for a while, but, like every other Linux distro I've ever tried, my 56k connection acts "stupid."

If I have a download running with, say, wget, and I try to browse a site with Firefox, wget will continue to use 90%+ of my connection's very meager bandwidth, making browsing practically impossible. I don't have this problem with Windows.

Not being particularly familiar with networking, I have no idea what's going on here. The modem works fine, otherwise. It's a USR 5610B (Performance Pro v.92), and I've used it in Mandrake 8.0-10.1, Slackware 10.0-10.1, Debian 3.0, etc. with the same problem that I've, again, never gotten with Windows.

TIA for any insight.

Last edited by Cicatriz; 04-03-2005 at 02:02 PM.
Old 04-04-2005, 09:25 AM   #2
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Location: Pirna, Germany
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I don't really think this behavior occurs because of your modem. One solution to solve this problem could be restricting the bandwidth of wget using the --limit-rate=amount argument (example wget --limit-rate=20k <URL> restricts the bandwidth wget can use on 20KB/s), otherwise wget would use the entire available bandwidth.
Old 04-04-2005, 10:44 AM   #3
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Ah... thanks for the reply.

It wasn't just wget-- I was just using that as an example. Everything was doing it.

But I've fixed the problem. Someone in #linuxhelp suggested I set my MTU/MRU (packet size) lower. I didn't realize that it's set for broadband by default.

Thanks, anyway.



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