Dear all,
last week I had performance problems using WiFi so I ran a WiFi network scan using my Android phone and "WiFi Manager". The scan's result was that both wireless LANs were using the same most "crowded" channel.
I thought that must be because I never power cycle and the AP30 would not check for channel population once it was fired up - which I found awkward - but today I had the problem that my Android phone would not connect to the AP30 sitting on my desk, so I power cycled the AP30 with the live opened and I could not believe what I saw:
[FONT="Courier New"]2013:11:11-14:02:01 mail-1 awed[9497]: [AP30 A4000*********] disconnected. Close socket and kill process.
2013:11:11-14:02:56 mail-1 awed[8757]: [MASTER] new connection from 192.168.0.13:53728
2013:11:11-14:02:57 mail-1 awed[14343]: [AP30 A4000*********] AP30 from 192.168.0.13:53728 identified as A4000*********
2013:11:11-14:02:59 mail-1 awed[14343]: [AP30 A4000*********] (Re-)loaded identity and/or configuration
2013:01:01-00:00:42 192.168.0.13-1 kernel: [ 42.150000] cfg80211: Regulatory domain changed to country: DE
2013:01:01-00:00:42 192.168.0.13-1 kernel: [ 42.150000] cfg80211: (2400000 KHz - 2483000 KHz @ 40000 KHz), (N/A, 2000 mBm)
2013:01:01-00:00:42 192.168.0.13-1 kernel: [ 42.150000] cfg80211: (5150000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm)
2013:01:01-00:00:42 192.168.0.13-1 kernel: [ 42.150000] cfg80211: (5250000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm)
2013:01:01-00:00:42 192.168.0.13-1 kernel: [ 42.150000] cfg80211: (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2700 mBm)
2013:11:11-14:03:00 192.168.0.13-1 sysinit: Channel 2 busy time 22/227ms, 9%
2013:11:11-14:03:00 192.168.0.13-1 sysinit: Channel 3 busy time 3/227ms, 1%
2013:11:11-14:03:01 192.168.0.13-1 sysinit: Channel 4 busy time 19/227ms, 8%
2013:11:11-14:03:01 192.168.0.13-1 sysinit: Channel 5 busy time 56/227ms, 24%
2013:11:11-14:03:01 192.168.0.13-1 sysinit: Channel 6 busy time 119/228ms, 52%
2013:11:11-14:03:02 192.168.0.13-1 sysinit: Channel 7 busy time 21/227ms, 9%
2013:11:11-14:03:02 192.168.0.13-1 sysinit: Channel 8 busy time 10/227ms, 4%
2013:11:11-14:03:02 192.168.0.13-1 sysinit: Channel 9 busy time 16/227ms, 7%
2013:11:11-14:03:03 192.168.0.13-1 sysinit: Channel 10 busy time 34/227ms, 14%
2013:11:11-14:03:03 192.168.0.13-1 sysinit: Channel 11 busy time 51/227ms, 22%
2013:11:11-14:03:04 192.168.0.13-1 sysinit: Select channel 1[/FONT]
A4000********* is the AP30 in question
Yes, there is no scanning result for channel 1, and btw. this channel is more crowded than channel 2, 8 or 9, but the AP30 still chooses this one.
I also tested this with a different AP30 at a different location - same issue: no channel 1 scanning result, but still choosing this channel 1.
While I was testing it got more confusing: just now my WiFi was gone and I could see in the logs that all 3 AP30 chose a new channel - 2 of them channel 1 (again without scanning results up front) and one of them channel 11 - which is one of the most crowded ones...?!?
Any explanation on this strange behavior? Isn't the system supposed to choose the least crowded channel and change channels when a less crowded channel has been detected?
Configuration on all three AP30 is "Channel 2.4 GHz:Auto", all three are running two wireless networks. UTMs are running firmware 9.106-17.
Thanks for your thoughts in advance!
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