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corpat

Disconnects one SSID

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EAP1750H, firmware 2.0.361

I have problem with that one of 3 SSIDs disconnects and reconnects, and never stops.

I have a scheduled reboot of the AP every day and after a reboot the networks work as normal, bug after a few hours (it varies) the SSID will disappear and appear again, constantly until next reboot. Since the wifi-network is removed and added all the time, the clients that use this network are unable to do so.

I have two other SSID (same configuration) that works great.

I have tried to set the network to only be a 2.4GHz network but that does not seem to help. Because of this I suspect that it's one of the clients that is causing the SSID to disappear.

Below are some logs that I saw directly after the network had disappeared.

Dec 30 14:47:27 EAP1750H user.warn kernel: wmi_unified_vdev_install_key_send Setting Key for Macaddress:0x7b--- 
Dec 30 14:47:27 EAP1750H user.warn kernel: TXRX: sec spec for peer 86dd4800 (f0:f6:1c:0a:----): ucast key of type 0
Dec 30 14:47:27 EAP1750H user.warn kernel: TXRX: ol_rx_peer_unmap_handler: peer 86dd4800 with ID 52 to be unmapped.
Dec 30 14:47:27 EAP1750H user.warn kernel: Node deleted (NC = 0)
Dec 30 14:47:27 EAP1750H user.warn kernel: Keyix=0 Keylen=16 Keyflags=0 Cipher=0 
Dec 30 14:47:27 EAP1750H user.warn kernel: FWLOG: [1911033] WAL_DBGID_SECURITY_UCAST_KEY_SET ( 0x0 )
Dec 30 14:47:27 EAP1750H user.warn kernel:  Keydata=0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 
Dec 30 14:47:27 EAP1750H daemon.info hostapd: ath50: STA f0:f6:1c:---- IEEE 802.11: disassociated
Dec 30 14:47:18 EAP1750H user.warn kernel: FWLOG: [1900905] WAL_DBGID_TX_BA_SETUP ( 0x434d74, 0x0, 0x0, 0x10, 0x1 )
Dec 30 14:47:17 EAP1750H user.warn kernel: TXRX: sec spec for peer 86dd4800 (f0:f6:1c:----): ucast key of type 6
Dec 30 14:47:17 EAP1750H user.warn kernel: Keyix=0 Keylen=16 Keyflags=0 Cipher=4 
Dec 30 14:47:17 EAP1750H user.warn kernel: FWLOG: [1900476] WAL_DBGID_TX_BA_SETUP ( 0x434d74, 0x6, 0x2, 0x10, 0x1 )
Dec 30 14:47:17 EAP1750H user.warn kernel: FWLOG: [1900476] RATE: ChainMask 1, phymode 6, ni_flags 0x00003006, vht_mcs_set 0x0000, ht_mcs_set 0x00ff, legacy_rate_set 0x0401
Dec 30 14:47:17 EAP1750H user.warn kernel: FWLOG: [1900308] WAL_DBGID_SECURITY_UCAST_KEY_SET ( 0x0 )
Dec 30 14:47:17 EAP1750H user.warn kernel: FWLOG: [1900308] WAL_DBGID_SECURITY_ENCR_EN (  )
Dec 30 14:47:17 EAP1750H user.warn kernel: FWLOG: [1900308] WAL_DBGID_SECURITY_ALLOW_DATA ( 0x434d74 )
Dec 30 14:47:17 EAP1750H user.warn kernel: FWLOG: [1900264] RATE: ChainMask 1, phymode 6, ni_flags 0x00003006, vht_mcs_set 0x0000, ht_mcs_set 0x00ff, legacy_rate_set 0x1cff14
Dec 30 14:47:17 EAP1750H user.warn kernel:  wmi_unified_vdev_install_key_send Setting Key for Macaddress:0x7b61---- 
Dec 30 14:47:17 EAP1750H user.warn kernel:  Unicast Keyidx set=5 
Dec 30 14:47:17 EAP1750H user.warn kernel:  Keydata=0x6e 0xdd 0x64 0xf9 0xc2 0xf3 0x8d 0xd5 0xac 0xaf 0xb0 0x8d 0xe4 0x4c 0xc6 0x7a 
Dec 30 14:47:17 EAP1750H daemon.info hostapd: ath50: STA f0:f6:---- WPA: pairwise key handshake completed (RSN)
Dec 30 14:47:17 EAP1750H daemon.info hostapd: ath50: STA f0:f6:---- RADIUS: starting accounting session 573D7522-00000001
Dec 30 14:47:16 EAP1750H user.warn kernel: wmi_unified_event_rx : no registered event handler : event id 0x901c 
Dec 30 14:47:16 EAP1750H user.warn kernel: ht numrates 8 , vht mcs set 0x0 maxratevht 0x0
Dec 30 14:47:16 EAP1750H user.warn kernel: [ieee80211_ioctl_setmlme] non sta mode, skip to set bssid
Dec 30 14:47:16 EAP1750H user.warn kernel: Node Added (NC = 1)
Dec 30 14:47:16 EAP1750H user.warn kernel: After: 3 2 1 0
Dec 30 14:47:16 EAP1750H user.warn kernel: 140, 18, 152, 36, 176, 72, 96, 108, 
Dec 30 14:47:16 EAP1750H user.warn kernel: 0, 1, 2, 3, 4, 5, 6, 7, 
Dec 30 14:47:16 EAP1750H user.warn kernel:  PHYMODE=0x6 NSS=1 FLAGS=0x3006 max_mpdu=32767
Dec 30 14:47:16 EAP1750H user.warn kernel:  ASSOC SUCCESS: MAC:f0:f6:1c:---- 
Dec 30 14:37:49 EAP1750H syslog.info syslogd started: BusyBox v1.19.4
 

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8 hours ago, corpat said:

EAP1750H, firmware 2.0.361

I have problem with that one of 3 SSIDs disconnects and reconnects, and never stops.

I have a scheduled reboot of the AP every day and after a reboot the networks work as normal, bug after a few hours (it varies) the SSID will disappear and appear again, constantly until next reboot. Since the wifi-network is removed and added all the time, the clients that use this network are unable to do so.

I have two other SSID (same configuration) that works great.

I have tried to set the network to only be a 2.4GHz network but that does not seem to help. Because of this I suspect that it's one of the clients that is causing the SSID to disappear.

Below are some logs that I saw directly after the network had disappeared.

Dec 30 14:47:27 EAP1750H user.warn kernel: wmi_unified_vdev_install_key_send Setting Key for Macaddress:0x7b--- 
Dec 30 14:47:27 EAP1750H user.warn kernel: TXRX: sec spec for peer 86dd4800 (f0:f6:1c:0a:----): ucast key of type 0
Dec 30 14:47:27 EAP1750H user.warn kernel: TXRX: ol_rx_peer_unmap_handler: peer 86dd4800 with ID 52 to be unmapped.
Dec 30 14:47:27 EAP1750H user.warn kernel: Node deleted (NC = 0)
Dec 30 14:47:27 EAP1750H user.warn kernel: Keyix=0 Keylen=16 Keyflags=0 Cipher=0 
Dec 30 14:47:27 EAP1750H user.warn kernel: FWLOG: [1911033] WAL_DBGID_SECURITY_UCAST_KEY_SET ( 0x0 )
Dec 30 14:47:27 EAP1750H user.warn kernel:  Keydata=0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 
Dec 30 14:47:27 EAP1750H daemon.info hostapd: ath50: STA f0:f6:1c:---- IEEE 802.11: disassociated
Dec 30 14:47:18 EAP1750H user.warn kernel: FWLOG: [1900905] WAL_DBGID_TX_BA_SETUP ( 0x434d74, 0x0, 0x0, 0x10, 0x1 )
Dec 30 14:47:17 EAP1750H user.warn kernel: TXRX: sec spec for peer 86dd4800 (f0:f6:1c:----): ucast key of type 6
Dec 30 14:47:17 EAP1750H user.warn kernel: Keyix=0 Keylen=16 Keyflags=0 Cipher=4 
Dec 30 14:47:17 EAP1750H user.warn kernel: FWLOG: [1900476] WAL_DBGID_TX_BA_SETUP ( 0x434d74, 0x6, 0x2, 0x10, 0x1 )
Dec 30 14:47:17 EAP1750H user.warn kernel: FWLOG: [1900476] RATE: ChainMask 1, phymode 6, ni_flags 0x00003006, vht_mcs_set 0x0000, ht_mcs_set 0x00ff, legacy_rate_set 0x0401
Dec 30 14:47:17 EAP1750H user.warn kernel: FWLOG: [1900308] WAL_DBGID_SECURITY_UCAST_KEY_SET ( 0x0 )
Dec 30 14:47:17 EAP1750H user.warn kernel: FWLOG: [1900308] WAL_DBGID_SECURITY_ENCR_EN (  )
Dec 30 14:47:17 EAP1750H user.warn kernel: FWLOG: [1900308] WAL_DBGID_SECURITY_ALLOW_DATA ( 0x434d74 )
Dec 30 14:47:17 EAP1750H user.warn kernel: FWLOG: [1900264] RATE: ChainMask 1, phymode 6, ni_flags 0x00003006, vht_mcs_set 0x0000, ht_mcs_set 0x00ff, legacy_rate_set 0x1cff14
Dec 30 14:47:17 EAP1750H user.warn kernel:  wmi_unified_vdev_install_key_send Setting Key for Macaddress:0x7b61---- 
Dec 30 14:47:17 EAP1750H user.warn kernel:  Unicast Keyidx set=5 
Dec 30 14:47:17 EAP1750H user.warn kernel:  Keydata=0x6e 0xdd 0x64 0xf9 0xc2 0xf3 0x8d 0xd5 0xac 0xaf 0xb0 0x8d 0xe4 0x4c 0xc6 0x7a 
Dec 30 14:47:17 EAP1750H daemon.info hostapd: ath50: STA f0:f6:---- WPA: pairwise key handshake completed (RSN)
Dec 30 14:47:17 EAP1750H daemon.info hostapd: ath50: STA f0:f6:---- RADIUS: starting accounting session 573D7522-00000001
Dec 30 14:47:16 EAP1750H user.warn kernel: wmi_unified_event_rx : no registered event handler : event id 0x901c 
Dec 30 14:47:16 EAP1750H user.warn kernel: ht numrates 8 , vht mcs set 0x0 maxratevht 0x0
Dec 30 14:47:16 EAP1750H user.warn kernel: [ieee80211_ioctl_setmlme] non sta mode, skip to set bssid
Dec 30 14:47:16 EAP1750H user.warn kernel: Node Added (NC = 1)
Dec 30 14:47:16 EAP1750H user.warn kernel: After: 3 2 1 0
Dec 30 14:47:16 EAP1750H user.warn kernel: 140, 18, 152, 36, 176, 72, 96, 108, 
Dec 30 14:47:16 EAP1750H user.warn kernel: 0, 1, 2, 3, 4, 5, 6, 7, 
Dec 30 14:47:16 EAP1750H user.warn kernel:  PHYMODE=0x6 NSS=1 FLAGS=0x3006 max_mpdu=32767
Dec 30 14:47:16 EAP1750H user.warn kernel:  ASSOC SUCCESS: MAC:f0:f6:1c:---- 
Dec 30 14:37:49 EAP1750H syslog.info syslogd started: BusyBox v1.19.4
 

The syslog may not have enough information to tell us the root cause of the issue. However, based on the scenario that you have outlined, this may be something to do with the wireless configuration of your access point. With regard to this, I would like to ask as to what would be the reason for 3 SSIDs broadcasting on your EAP1750H, did you integrate them with VLAN?

Below are my recommendations:

If you do not have VLAN, broadcasting 3 SSIDs would not be necessary as users will be just using the same IP address segment. Implementing the following settings below would help you narrowing down the issue:

Band Steering: Disabled
RSSI: Disabled
Fast Roaming: Disabled

*For 2.4GHz
• Set the wireless stream band (Channel HT Mode) to 20MHz only
• Use non-overlapping channels 1, 6, or 11
• Use WPA2-PSK/AES only for the wireless Security Encryption
• Reduce the coverage cell to lessen the interference from nearby wireless device/s that operate/s on the same radio frequency (2.4GHz). This can be done by lowering the TX power to 14dBm

*For 5GHz
• Set the wireless stream band (Channel HT Mode) to 80MHz only
• Use channels 36, 52, 100, 116, and 149
• Use WPA2-PSK/AES only for the wireless Security Encryption
• Reduce the coverage cell to lessen the interference from nearby wireless device/s that operate/s on the same radio frequency (5GHz). This can be done by lowering the TX power to 20dBm
 

Hope the above suffices your requirement.

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9 hours ago, laireV said:

I would like to ask as to what would be the reason for 3 SSIDs broadcasting on your EAP1750H, did you integrate them with VLAN?

Band Steering: Disabled
RSSI: Disabled
Fast Roaming: Disabled

*For 2.4GHz
• Set the wireless stream band (Channel HT Mode) to 20MHz only
• Use non-overlapping channels 1, 6, or 11
• Use WPA2-PSK/AES only for the wireless Security Encryption
• Reduce the coverage cell to lessen the interference from nearby wireless device/s that operate/s on the same radio frequency (2.4GHz). This can be done by lowering the TX power to 14dBm

*For 5GHz
• Set the wireless stream band (Channel HT Mode) to 80MHz only
• Use channels 36, 52, 100, 116, and 149
• Use WPA2-PSK/AES only for the wireless Security Encryption
• Reduce the coverage cell to lessen the interference from nearby wireless device/s that operate/s on the same radio frequency (5GHz). This can be done by lowering the TX power to 20dBm

Thanks for your reply!

Band steering, rssi, fast roaming are disabled.

And for the other recommendations I have them all, except for Channel HT Mode that I have on 40MHz only for 5GHz.

The reason for 3 SSIDs is that I have one guest network and one normal network on different VLANs. But I had problems with that some clients that came here could not find the guest network I decided to split the guest network in one SSID for 2.4GHz and one SSID for the 5GHZ, but that was something I did to try to fix the problem with clients that cannot see my network. I thought that maybe some old clients could not support same SSID name for multiple bands and therefore not find the network. However now I suspect that it was just that they did not support 5GHz, and the 2.4GHz was gone.

In my area there are only 2 or 3 other SSIDs being broadcast, so it's quite low interference here. But I have set the channels properly.

Any more ideas?

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Is the SSID in question hidden or being broadcast?And do you have with client, VLAN or L2 isolation enabled (I have a mix across multiple SSID.

I've had similar problems with my hidden SSID's disappearing (like you I have 3 separate SSID, running separate VLANs for guest and specific applications), but I never managed to fix it - the scheduled reboot twice a week is my current workaround :-(

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>Is the SSID in question hidden or being broadcast?And do you have with client, VLAN or L2 isolation enabled (I have a mix across multiple SSID.

I don't use hidden SSID but I am using VLAN isolation and also Client isolation. L2 isolation is not enabled.

 

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