On 20 Jun, David Konerding wrote: > Normally I have fine performance. However, if the laptop is suspended > and then resumed, wireless performance falls through the floor- it still > works but at about 600bytes/sec. The wireless properties page says that > the connection is fine; full strength.
I don't know if this will help, but I had a sort-of-similar problem with D-Link hardware (DWL-1000AP and DWL-650). The connection throughput would occasionally drop to right around 8kbits/s. I never was able to consistently reproduce this or fix it. Sometimes I could suspend and resume the laptop and it work fine; sometimes it would just slow down with no obvious trigger at all. Sometimes rebooting the laptop fixed it; sometimes power cycling the AP did it; sometimes nothing worked immediately. I was seeing the exact same behavior with both Windows and Linux on the laptop (dual boot), so I doubt it was a driver issue. I finally got a replacement DWL-650 from D-Link, and that did the trick. (After getting them to replace the AP first , which didn't change anything.) Oddly, the new card immediately worked under Win98, but was showing the same old problem under Linux. The latest version of the driver (orinoco_cs) fixed it. (I'd been keeping up with new versions before I sent in the card for replacement, so it's not like I was running an ancient version or something.) I'm still a little curious about what was going on. I did some tests (with the broken hardware) using tcpdump on both ends of the connection, and it looked like there was a really hideous latency (about 2 seconds, as I recall) going through the AP, which triggered the TCP to back off on transmitting data (depending on the window size). But the problem was apparently in the NIC, not in the AP, so I have no clue what was going on. - Derek -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
