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XG managed APX 740 APs randomly going offline and dropping all clients

Dawg13

Feature and severity: I have a bug (appears to be) with SFOS v18 v3 and APX 740 wireless access points that I consider moderately impacting.

Summary: I am unsure of the trigger, however, every now and then (appears random but multiple times per day) all 3 of my APX 740s “appear” to go offline then come back a minute or two later.

Observed behavior: All 3 APs drop all clients and the SSID isn’t broadcast then after two or three minutes they come back.  All the clients need to re-home to the best AP again.  I run 3 740s using an XG210 as the controller and have 3 SSIDs (one for only 2.4ghz, one for only 5ghz and one for a guest SSID that’s 2.4 + 5ghz).  I thought it may be related to auto channel selection so I manually set the channel on both 5ghz and 2.4ghz radios on all APs (different channels of course).  The problem persisted though.  I don’t recall having this issue previously but it may have been happening without me being aware.  I say that because I’ve recently added significant home automation devices so now it’s very noticeable when this happens.

i tried Sophos central wireless and it’s worse.  I won’t go back to central until several releases come out.

Reproduce it:  This happens on its own many times a day but nothing that forces it that I’m aware of.

Supporting logs: The log viewer, under “SYSTEM” shows (just a brief excerpt for brevity):

SYSTEM
2020-01-05 14:13:20
WirelessProtection
    
[MASTER] sending notification about offline AP P210018WVRKDY75
18006
SYSTEM
2020-01-05 13:00:20
WirelessProtection
    
Successfully sent config to AP [P210018V7XJJH9F].
18007
SYSTEM
2020-01-05 13:00:05
WirelessProtection
    
Successfully sent config to AP [P210018WVRKDY75].
18007
SYSTEM
2020-01-05 12:59:48
WirelessProtection
    
[MASTER] sending notification about offline AP P210018V7XJJH9F
18006
SYSTEM
2020-01-05 12:59:27
WirelessProtection
    
[MASTER] sending notification about offline AP P210018WVRKDY75
18006
SYSTEM
2020-01-05 12:57:29
WirelessProtection
    
Successfully sent config to AP [P210018V7XJJH9F].
18007
SYSTEM
2020-01-05 12:56:49
WirelessProtection
    
[MASTER] sending notification about offline AP P210018V7XJJH9F
18006
SYSTEM
2020-01-05 12:56:05
WirelessProtection
    
Successfully sent config to AP [P210018WVRKDY75].
18007
SYSTEM
2020-01-05 12:55:25
WirelessProtection
    
[MASTER] sending notification about offline AP P210018WVRKDY75
18006

 

Parents
  • 0

    Hello Jamie,

    can you please specify wich fixed channels do you selected?

    Kind Regards,

    Suzzyx

  • 0 in reply to suzzyx

    Hi Suzzyx,

     

    for 2ghz (3 APs):

    1, 6, 11

     

    for 5ghz (2 APs):

    36, 44

     

    side note: I could re-enable auto selection (I only ever used auto on 5ghz) and see if it happens.  Still no new AP offline entries in the log.

  • 0 in reply to Dawg13

    Started to occur again.  I noticed memory use creeping up slowly.  I have an XG210 and at boot it starts just under 30%. Now it’s around 50%.  With auto turned off, no firmware updates nor any changes made by me, I’ve no idea what config is even being sent to the APs:

     

    SYSTEM
    2020-01-08 12:31:41
    Wireless Protection
    		    
    Successfully sent config to AP [P210018V7XJJH9F].
    18007
    SYSTEM
    2020-01-08 12:31:10
    Wireless Protection
    		    
    [MASTER] sending notification about offline AP P210018V7XJJH9F
    18006
    SYSTEM
    2020-01-08 11:59:51
    Wireless Protection
    		    
    Successfully sent config to AP [P210018V7XJJH9F].
    18007
    SYSTEM
    2020-01-08 11:59:19
    Wireless Protection
    		    
    Successfully sent config to AP [P210018V7XJJH9F].
    18007
    SYSTEM
    2020-01-08 11:58:46
    Wireless Protection
    		    
    [MASTER] sending notification about offline AP P210018V7XJJH9F
    18006
    SYSTEM
    2020-01-08 07:00:33
    Wireless Protection
    		    
    Successfully sent config to AP [P210018V7XJJH9F].
    18007
  • 0 in reply to Dawg13

    Again:

    SYSTEM
    2020-01-10 16:39:38
    Wireless Protection
    		    
    Successfully sent config to AP [P210018WVRKDY75].
    18007
    SYSTEM
    2020-01-10 16:39:05
    Wireless Protection
    		    
    [MASTER] sending notification about offline AP P210018WVRKDY75
    18006
    SYSTEM
    2020-01-08 12:31:41
    Wireless Protection
    		    
    Successfully sent config to AP [P210018V7XJJH9F].
    18007
    SYSTEM
    2020-01-08 12:31:10
    Wireless Protection
    		    
    [MASTER] sending notification about offline AP P210018V7XJJH9F
    18006
    SYSTEM
    2020-01-08 11:59:51
    Wireless Protection
    		    
    Successfully sent config to AP [P210018V7XJJH9F].
    18007
Reply
  • 0 in reply to Dawg13

    Again:

    SYSTEM
    2020-01-10 16:39:38
    Wireless Protection
    		    
    Successfully sent config to AP [P210018WVRKDY75].
    18007
    SYSTEM
    2020-01-10 16:39:05
    Wireless Protection
    		    
    [MASTER] sending notification about offline AP P210018WVRKDY75
    18006
    SYSTEM
    2020-01-08 12:31:41
    Wireless Protection
    		    
    Successfully sent config to AP [P210018V7XJJH9F].
    18007
    SYSTEM
    2020-01-08 12:31:10
    Wireless Protection
    		    
    [MASTER] sending notification about offline AP P210018V7XJJH9F
    18006
    SYSTEM
    2020-01-08 11:59:51
    Wireless Protection
    		    
    Successfully sent config to AP [P210018V7XJJH9F].
    18007
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