Hello,

I am experiencing a recurring issue with my Deco X50-PoE mesh system (all units running firmware 1.5.0, backhaul via Ethernet).

• When a client roams from one AP to another (for example with a laptop or smartphone moving between floors), the Wi-Fi connection stays associated, but the client fails to obtain an IPv4 address (only link-local IPv6).

• Disconnecting/reconnecting to Wi-Fi does not always help. The only way to recover is to “forget the network” on the client and reconnect, which forces a new DHCP discovery.

• My DHCP server is pfSense/Kea, and works fine with other APs. The issue only appears with Deco X50-PoE during roaming.

I checked the logs on the Deco units and consistently see the following errors when the problem occurs:

daemon.err nrd[13266]: wlanifLinkEventsCmnHandleIWEvent: unknown flag
daemon.err nrd[13266]: wlanifBSteerEventsMsgRx event type: 3
daemon.notice nrd[13266]: ar_apinfo_collect[line 1138]: AP sync timer expires! 

This strongly suggests a bug in the band-steering / roaming process (802.11r/k/v), where DHCP relay or AP synchronization fails.

Could you please confirm:

1. If this is a known issue with firmware 1.5.0 on Deco X50-PoE?

2. If a beta firmware or rollback package is available to fix this problem?

3. If there are recommended settings to avoid this bug until a patch is released?

Thank you in advance for your help.

Best regards,

Etienne