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wireless card frequently hanging up



  several weeks ago, i put my RH 8.0 laptop on a small
wireless net here in the house -- linksys pcmcia card
and linksys 4-port WAP router.

  most of the time, everything is fine, but recently, 
and increasingly frequently, the data transfer just hangs,
typically at the same time as an arbitrary web page download.

  "ifconfig" shows nothing amiss, but "fetchmail" times out
claiming it can't do a DNS lookup.  effectively, all networking
grinds to a halt on that interface, and the only fix is to
"service network restart".

  i'd really like to know what the problem is, how to avoid it,
and how to fix it less drastically when it happens.  hints?

rday





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