Because I have a nice setup here and there were seven commits between these driver versions so I can probably debug this. So it would appear something changed between the 5.100.82.112 and 6.20.155.1 version of the drivers. After five minutes, only ONE ping timeout on computer A occurred. Computer A's ping times increased slightly (competing for bandwidth). Then I started watching a video on YouTube. Computer A had NO ping timeouts within three minutes. I turn on computer B's wifi and started pinging. As before prior to activating wifi on machine B, there were no ping timeouts on computer A. Then I installed the 5.x version of the driver using `dpkg -i` and repeated the experiment. This behavior has already been established by posts above, but is confirmed on my machine. Upon shutting off wifi on computer B, computer A had no ping timeouts. After activating wifi on computer B with the 6.x driver, computer A had several ping timeouts within 1 minute. Prior to activating computer B's wifi, computer A had no ping timeouts in five minutes.
com/raring/ amd64/bcmwl- kernel- source/ download)Ĭomputer A: BCM4313 on Windows pinging off-site machineĬomputer B: BCM4313 Linux box pinging same off-site machine I just compared the current version (6.20.155.1) of bcmwl-kernel-source against the 5.100.82.112 version of the driver from quantal (downloaded from packages. If necessary, I should be able to get a third computer capturing packets in monitor mode to see if my system is flooding RF packets, but that would require a bunch of time to set up. I do not see unexpected network traffic on the wireless network card when running Wireshark on the offending system, although I can only see the ethernet packets I cannot seem to put my card into monitor mode. The wireless network is visible (not hidden SSID), and in mixed 802.11n/g mode. This began happening just after upgrading to 13.04, and did not happen with earlier versions of Ubuntu. Interference starts on boot and runs continuously until poweroff, even when my system should not be transmitting or receiving network packets. My wireless adapter is a Broadcom 4313 (built into the HP G72 laptop). My system appears to be causing heavy interference with the other clients. They encounter high packet loss when physically near my Ubuntu system, but function fine when physically close to the wireless router and away from my system or when my system is off. After Ubuntu 13.04 upgrade, other wireless clients cannot access my WPA2-AES-PSK home network.