Any idea ? >Hi all, > >I am encountering a periodic (each 1 second) Wi-Fi transmission speed drop (from 54Mbps to 6Mbps) during an iperf between two mesh portals. >The speed stays stuck to 6Mbps during about 300ms and then recovers its 54Mbps rate. About 1 second later this happen again. > >The Wi-Fi speed drops from 54Mbps to 6Mbps without any intermediate speed nor frame loss. > >My channel is clear from any other Wi-Fi devices disturbances. > >My system is as follow : > __ _ __ _ > 192.168.2.41 [__]|=| Wireless devices [__]|=| 192.168.2.38 > 1c:75:08:0b:76:52 /::/|_| are close to each /::/|_| 08:00:27:6e:54:11 > | other (about 15cm) ^ > Ethernet| | Ethernet > | |_|_| |_|_| | > '---->[____°] [____°]-----' > Mesh Portal Mesh Portal > 90:A4:DE:21:4F:11 00:1B:B1:58:F6:DD > >Kernel : 2.6.33.7 >Compat Wireless : 2012-06-14 >Radio chipset : AR9160 (ath9k) > >Please find attached a wireshark wireless trace of the drop itself (between packets 6 and 7). > >Can you give me some clue how to work it out ? >Thanks in advance, > >Best regards, > >Cédric DEBARGE
Attachment:
drop_capture.pcap
Description: drop_capture.pcap
