Wifi Instability with Networks rebooting consistently

Hallo,

out Wifi is currently very instable and the wifi is not available for a few moments. After the few moments the wifi is again available.We have 2 Network Device ( Wifi SSIDs namely 'intern' -> wlan1 and 'gäste' -> wlan0

Hardware: Sophos UTM Sg 125 Firewall

AcessPoints: 1x AP55 and 2x AP55C (total 3 AP at one location)

As you can see in the log, the networkdevices wlan1 and wlan0 changes status to down and then disabled. This happens on all the AP present at the location.

I would aprreciate if anyone could explain why this is happening? I cannot understand where the problem is.

Log:;

2020:12:16-10:54:36 A4004816B54B508 hostapd: wlan1: STA 08:c5:e1:09:80:b4 IEEE 802.11: deauthenticated due to local deauth request
2020:12:16-10:55:04 A400585803F6715 wifi_pdog.sh: One of the WiFi interface found down.
2020:12:16-10:55:05 A400585803F6715 kernel: [516857.470000] br-lan: port 2(wlan1) entered disabled state
2020:12:16-10:55:05 A400585803F6715 kernel: [516857.480000] device wlan1 left promiscuous mode
2020:12:16-10:55:05 A400585803F6715 kernel: [516857.480000] br-lan: port 2(wlan1) entered disabled state
2020:12:16-10:55:05 A400585803F6715 netifd: Network device 'wlan1' link is down
2020:12:16-10:55:05 A400585803F6715 kernel: [516857.500000] device wlan0 left promiscuous mode
2020:12:16-10:55:05 A400585803F6715 kernel: [516857.510000] br-vxlan100: port 2(wlan0) entered disabled state
2020:12:16-10:55:05 A400585803F6715 netifd: Network device 'wlan0' link is down
2020:12:16-10:55:12 A4004816B54B508 hostapd: wlan1: STA e0:48:d3:f3:04:f5 IEEE 802.11: authenticated
2020:12:16-10:55:12 A4004816B54B508 hostapd: wlan1: STA e0:48:d3:f3:04:f5 IEEE 802.11: associated (aid 1)
2020:12:16-10:55:12 A4004816B54B508 awelogger[13379]: id="4103" severity="info" sys="System" sub="WiFi" name="STA authentication" ssid="FXXL_intern" ssid_id="WLAN1.0" bssid="00:1a:8c:c2:b3:ca" sta="e0:48:d3:f3:04:f5" status_code="0"
2020:12:16-10:55:12 A4004816B54B508 awelogger[13379]: id="4104" severity="info" sys="System" sub="WiFi" name="STA association" ssid="FXXL_intern" ssid_id="WLAN1.0" bssid="00:1a:8c:c2:b3:ca" sta="e0:48:d3:f3:04:f5" status_code="0"
2020:12:16-10:55:12 A4004816B54B508 hostapd: wlan1: STA e0:48:d3:f3:04:f5 RADIUS: starting accounting session 5FD9E74A-00000001
2020:12:16-10:55:12 A4004816B54B508 hostapd: wlan1: STA e0:48:d3:f3:04:f5 WPA: pairwise key handshake completed (RSN)
2020:12:16-10:55:12 A4004816B54B508 awelogger[13379]: id="4101" severity="info" sys="System" sub="WiFi" name="STA connected" ssid="FXXL_intern" ssid_id="WLAN1.0" bssid="00:1a:8c:c2:b3:ca" sta="e0:48:d3:f3:04:f5"
2020:12:16-10:55:15 A400585803F6715 pdog[838]: src/process.c:325/unregister_process: process with name hostapd-phy2 is not registered before
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): {
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): "result": "FAILURE"
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): }
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Configuration file: /var/run/hostapd-phy2.conf
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): eapol_version=1
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): eapol_version=1
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: TDLS supported
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: TDLS external setup
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Supported cipher 00-0f-ac:1
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Supported cipher 00-0f-ac:5
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Supported cipher 00-0f-ac:2
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Supported cipher 00-0f-ac:4
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Supported cipher 00-0f-ac:6
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Using driver-based off-channel TX
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Use separate P2P group interface (driver advertised support)
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: interface wlan0 in phy phy2
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Set mode ifindex 16411 iftype 3 (AP)
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Setup AP(wlan0) - device_ap_sme=0 use_monitor=0
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Subscribe to mgmt frames with AP handle 0xaec250
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Register frame type=0xb0 (WLAN_FC_STYPE_AUTH) nl_handle=0xaec250 match=
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Register frame type=0x0 (WLAN_FC_STYPE_ASSOC_REQ) nl_handle=0xaec250 match=
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Register frame type=0x20 (WLAN_FC_STYPE_REASSOC_REQ) nl_handle=0xaec250 match=
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Register frame type=0xa0 (WLAN_FC_STYPE_DISASSOC) nl_handle=0xaec250 match=
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Register frame type=0xc0 (WLAN_FC_STYPE_DEAUTH) nl_handle=0xaec250 match=
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0xaec250 match=
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Register frame type=0x40 (WLAN_FC_STYPE_PROBE_REQ) nl_handle=0xaec250 match=
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Add own interface ifindex 7
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: if_indices[16]: 7
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Add own interface ifindex 5
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: if_indices[16]: 7 5
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Add own interface ifindex 16411
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: if_indices[16]: 7 5 16411
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Adding interface wlan0 into bridge br-vxlan100
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): phy: phy2
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): BSS count 2, BSSID mask 00:00:00:00:00:01 (1 bits)
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Using existing control interface directory.
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): wlan0: interface state UNINITIALIZED->COUNTRY_UPDATE
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Previous country code DE, new country code DE
2020:12:16-10:55:15 A400585803F6715 kernel: [516868.060000] device wlan0 entered promiscuous mode
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Regulatory information - country=DE (DFS-ETSI)
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: 2400-2483 @ 40 MHz 20 mBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: 5150-5250 @ 80 MHz 20 mBm (no outdoor)
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: 5250-5350 @ 80 MHz 20 mBm (no outdoor) (DFS)
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: 5470-5725 @ 160 MHz 27 mBm (DFS)
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: 57000-66000 @ 2160 MHz 40 mBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Added 802.11b mode based on 802.11g information
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=1 freq=2412 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=2 freq=2417 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=3 freq=2422 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=4 freq=2427 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=5 freq=2432 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=6 freq=2437 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=7 freq=2442 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=8 freq=2447 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=9 freq=2452 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=10 freq=2457 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=11 freq=2462 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=12 freq=2467 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=1 chan=13 freq=2472 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Channel 14 (2484)is disabled!!
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=1 freq=2412 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=2 freq=2417 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=3 freq=2422 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=4 freq=2427 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=5 freq=2432 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=6 freq=2437 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=7 freq=2442 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=8 freq=2447 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=9 freq=2452 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=10 freq=2457 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=11 freq=2462 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=12 freq=2467 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Allowed channel: mode=0 chan=13 freq=2472 MHz max_tx_power=20 dBm
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Channel 14 (2484)is disabled!!
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): ACS: Automatic channel selection started, this may take a bit
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): ACS: skipping channel 14 (2484)
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): ACS: Scanning 1 / 5
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): wlan0: nl80211: scan request
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2412 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2417 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2422 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2427 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2432 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2437 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2442 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2447 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2452 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2457 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2462 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2467 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): nl80211: Scan frequency 2472 MHz
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Scan requested (ret=0) - scan timeout 10 seconds
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): wlan0: interface state COUNTRY_UPDATE->ACS
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): wlan0: ACS-STARTED
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): Interface initialization will be completed in a callback (ACS)
2020:12:16-10:55:15 A400585803F6715 netifd: radio0 (20638): ctrl_iface not configured!
2020:12:16-10:55:16 A400585803F6715 netifd: radio0 (20638): command failed: No such device (-19)
2020:12:16-10:55:23 A400585803F6715 netifd: Network device 'wlan0' link is up
2020:12:16-10:55:23 A400585803F6715 kernel: [516875.660000] br-vxlan100: port 2(wlan0) entered forwarding state
2020:12:16-10:55:23 A400585803F6715 kernel: [516875.670000] br-vxlan100: port 2(wlan0) entered forwarding state
2020:12:16-10:55:23 A400585803F6715 kernel: [516875.700000] device wlan1 entered promiscuous mode
2020:12:16-10:55:23 A400585803F6715 kernel: [516875.700000] br-lan: port 2(wlan1) entered forwarding state
2020:12:16-10:55:23 A400585803F6715 kernel: [516875.710000] br-lan: port 2(wlan1) entered forwarding state
2020:12:16-10:55:23 A400585803F6715 netifd: Network device 'wlan1' link is up
2020:12:16-10:55:25 A400585803F6715 kernel: [516877.670000] br-vxlan100: port 2(wlan0) entered forwarding state
2020:12:16-10:55:25 A400585803F6715 kernel: [516877.710000] br-lan: port 2(wlan1) entered forwarding state
2020:12:16-10:55:49 A4004816B54B508 wifi_pdog.sh: One of the WiFi interface found down.
2020:12:16-10:55:50 A4004816B54B508 netifd: Network device 'wlan1' link is down
2020:12:16-10:55:50 A4004816B54B508 kernel: [ 2222.160000] br-lan: port 2(wlan1) entered disabled state
2020:12:16-10:55:50 A4004816B54B508 kernel: [ 2222.170000] device wlan1 left promiscuous mode
2020:12:16-10:55:50 A4004816B54B508 kernel: [ 2222.170000] br-lan: port 2(wlan1) entered disabled state
2020:12:16-10:55:50 A4004816B54B508 kernel: [ 2222.210000] device wlan0 left promiscuous mode
2020:12:16-10:55:50 A4004816B54B508 kernel: [ 2222.210000] br-vxlan100: port 2(wlan0) entered disabled st

Parents
  • Hello Sidd,

    which version of UTM are you running (9.7.x ?), please give exact version.

    The failing AP are the AP55c ones? We had a series of AP55c with lots of hardware/frimware related problems and had them all replaced by Sophos without trouble.

    I remember there has been a series of AP which had this problem, but I can't find the serial number range to which this was happening.

    Second thing that comes to my mind: there was a change in firmware that is downloaded to the APs when connected to a SG-UTM. If this new "unified firmware" was dwonloaded at a certain firmware level, then the AP got bricked. So let's check your firmware level of the SG-UTM first.

    Mit freundlichem Gruß, Regards from Germany,

    Philipp Rusch

    New Vision GmbH, Germany
    Sophos Silver-Partner

    If a post solves your question please use the 'Verify Answer' button.

  • Hi Philipp,

    The Firmware Version on the Sg-125 is 9.705-3.

    Both the AP55 and the AP55C are reporting this issue.

    I do recollect that after a firmware update on the sg-125 a couple of months ago the AP issued the same problem. A manual restart solved the issue at that time but not now.

    Thanks for input.

    Regards, Sidd

  • Test if possible to avoid the umlaut ä in Gäste WiFi and remove this SSID from one of the AP55c. Check if this AP is then stable.

    Are you using WLA2 Enterprise and assign VLANs to the WiFi devices?

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