I see several errors in system log and i am not sure if they are related to my problem. 
Recently i experience network issues:

1) Some device that are connected on wifi do not have an assigned IP address. This possibly happens when the dhcp lease expires. To fix the issue i have to turn off and on the wifi on the device. 
2) Several devices are not connected to the closest deco device evn though the one connect to the is far away. Fast roaming is enabled. Some other devices even do not connect on the closest deco even when the other deco device is out of range. 
 

I have been experiencing these issue for thr last couple of weeks. Could you please let me know what to do?
 

Thu Nov 26 12:37:02 2020 daemon.err nrd[22913]: qca_send_rrm_beacon_req : fail to append channel report.

Thu Nov 26 12:37:02 2020 daemon.err nrd[22913]: estimatorPerformMeasurement: Failed to initiate 11k measuremrent for 9E:4C:D3:26:A4:E3 on channel 36 from serving BSS APId 255 ChanId 12 ESSId 0 

Thu Nov 26 12:51:18 2020 daemon.err nrd[22913]: bcnrpt_append_chan_report: don't find regclassnum

Thu Nov 26 12:51:18 2020 daemon.err nrd[22913]: qca_send_rrm_beacon_req : fail to append channel report.

Thu Nov 26 12:51:18 2020 daemon.err nrd[22913]: estimatorPerformMeasurement: Failed to initiate 11k measuremrent for 9E:4C:D3:26:A4:E3 on channel 36 from serving BSS APId 255 ChanId 12 ESSId 0