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WiFi devices not getting IP, WiFi Interface "unplugged", vxlan interfaces missing

We updated WiFi AP Firmware 3 days ago. on one location with some AP55c clients connecting to a WiFi will not get IP addresses. I cannot even see the DHCP requests with packet capture.

I noticed the WiFi interface is shown as unplugged. When I noticed the issue, the Interface did not even have a MAC address (00:00:00:00:00:00).

So I edited, disabled, enabled the SSID and the interface. It remains in unplugged status. No luck, at least it got MAC address again by those changes.

Unplugged and no MAC Address:

After changing and re-applying settings back to original values:


XXX_Guests Link encap:Ethernet  HWaddr F2:EE:67:B9:E3:EA
          inet addr:172.xxx.xxx.1  Bcast:172.xxx.252.255  Mask:255.255.255.0
          inet6 addr: fe80::a86d:xxxxxxxxxxxxxx:1bb1/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:6326211 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6022720 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:5041929744 (4.6 GiB)  TX bytes:4307225067 (4.0 GiB)

any help on this please?

update 7.7.2021: noticed missing vxlan adapters on the HA nodes that came up after reboot of the nodes. See comments below.



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