"...detects radar burst on radio..." causing really bad throughput

[johan_axelsson_]

This morning almost all of my AP "detects radar burst on radio..." causing really bad throughput on my network. This has been going on for more than two hours now and, no, no helicopters or similar can be seen (small town). I have noticed this every now and then but never on this level. Could other types of interference cause the same action? (ZD3025 and R500)

[johan_axelsson_]

Hi Alex,

Thank you very much for your feedback. It makes sense since we are talking about quite a large factory building with lots of APs.

It is a little strange that this problem (which I have noticed earlier but not to the same extend) suddenly arose this morning. One change I actually did yesterday was that I added one AP to the network...

Recommended firmware seems still to be 9.13.3.0.121. Is it really advisable to go for the 10.0.0.0.1424 version?

Best regards
Johan Axelsson

[alexandra_frinc]

@Johan, 

I just provided several options in my first reply.
You should still ask support for advice. I did not try the 10.x.
If you have the possibility to test it, go for the latest MR1 10.0.1.0.17, not for the GA.

[johan_axelsson_]

From "AP Activities" this morning:

Oct 19 08:34:55 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-04@d4:68:4d:28:07:70] detects interference on radio [11a/n] and switches from channel [116] to channel [36]. 
Oct 19 08:34:38 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-04@d4:68:4d:28:07:70] detects radar burst on radio [11a/n/ac] and channel [128] goes into non-occupancy period. 
Oct 19 08:34:38 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-04@d4:68:4d:28:07:70] detects radar burst on radio [11a/n/ac] and channel [124] goes into non-occupancy period. 
Oct 19 08:34:38 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-04@d4:68:4d:28:07:70] detects radar burst on radio [11a/n/ac] and channel [120] goes into non-occupancy period. 
Oct 19 08:34:38 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-04@d4:68:4d:28:07:70] detects radar burst on radio [11a/n/ac] and channel [116] goes into non-occupancy period. 
Oct 19 08:32:12 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-24@d4:68:4d:29:2b:10] detects interference on radio [11g/n] and switches from channel [11] to channel [1]. 
Oct 19 08:31:58 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-04@d4:68:4d:28:07:70] detects interference on radio [11g/n] and switches from channel [11] to channel [6]. 
Oct 19 08:31:49 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-14@e0:10:7f:25:16:70] detects interference on radio [11g/n] and switches from channel [11] to channel [6]. 
Oct 19 08:31:49 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-24@d4:68:4d:29:2b:10] detects interference on radio [11a/n/ac] and switches from channel [100] to channel [104]. 
Oct 19 08:31:49 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-04@d4:68:4d:28:07:70] detects interference on radio [11a/n/ac] and switches from channel [100] to channel [116]. 
Oct 19 08:31:31 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-04@d4:68:4d:28:07:70] detects radar burst on radio [11a/n/ac] and channel [112] goes into non-occupancy period. 
Oct 19 08:31:31 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-04@d4:68:4d:28:07:70] detects radar burst on radio [11a/n/ac] and channel [108] goes into non-occupancy period. 
Oct 19 08:31:31 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-04@d4:68:4d:28:07:70] detects radar burst on radio [11a/n/ac] and channel [104] goes into non-occupancy period. 
Oct 19 08:31:31 EFGZD01 syslog: eventd_to_syslog():AP[AP-Tra-Prod-04@d4:68:4d:28:07:70] detects radar burst on radio [11a/n/ac] and channel [100] goes into non-occupancy period. 

APs consider other APs as interference sources? Should this situation at all occur? Note that this is concerning the 5 GHz band only.

/ Johan Axelsson

[sui_sui]

Same issue here. Really annoying as we only have 4 non DFS channels.