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Old 03-01-2007   #9 (permalink)
Airstreamer
Sniffin' the aether
 
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Join Date: Nov 2004
Location: A little North of Reason
Posts: 2,834
D-Stink 7700ap

Anybody had to mess with the DWL-7700AP outdoor unit? (2.4 / 5.8 AP/Bridge.)

Just curious.

I got stuck with 3 of them to 'evaluate' (make sure they turn on...) and then pass them on to an engineering firm for a project at work. I did NOT want them, but got overriden by the folks inhabiting the adminisphere.

First thing I found was they didn't like Windows XP tcp/ip stack. Win 2k is fine.

Damn PoSs' are web browser configured, and they would stop responding under XP. You'd see some of the .gif files for the menu icons load, and then it would quit. Eventually IE would time out. If you refreshed, eventually you'd get the entire page. The problem could be re-created by flushing the IE file cache. Doing a bit of sniffing with Wireshark showed that the problem was multiple TCP connections were being setup under XP and they would have to time out before any more data would move!

The XP TCP window sizes were all over 32k, and the box kept responding with a window size of 8192. Pretty soon you hit the 10 connection limit under XP SP2 and it would quit moving data. Win 2k negotiated window sizes fine, and they just kept on yakking along! Of course, D-Stink had NEVER had a problem like that before, (he said in a thick Indian accent...)

"The packets don't lie" was one of the things Chappell kept repeating, so I sent 'em the packet captures!

Pfft. I'll bet that never gets fixed.
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