Opened 22 months ago

#22233 new defect

Version CC,ath9K, two adhoc mode wifi cards, data transmit sometimes hang with iperf

Reported by: benxuelan0402@… Owned by: developers
Priority: normal Milestone:
Component: packages Version: Chaos Calmer 15.05
Keywords: adhoc transmit hang Cc:


Hi, my router boards are PB44 which is with 1 WiFi card each, my openwrt version is CC 15.05, using mac80211 and ath9k, the mode of WiFi card is configured by adhoc mode. The connection scenario is as follows:

PC1(iperf client)---(RJ45)----PB44 Board1------(Wireless)-----PB44 Board2----PC2(iperf server)
the RX signal level is -65dBm, and the noise level is -95dBm,

iperf client configure is:
start /high d:\iperf\iperf -c XXX.XXX.XXX.XXX -u -i1 -t999999999 -l1100 -b20m -p5001

When I do the test, at the beginning, the transmit is ok, but after 1 minute or several seconds, the transmit will be hang, and a few seconds or minute later, the transmit is continued.

Can anybody tell me why?

ps. If the openwrt wersion is BB 14.07, the problem above is gone.

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