Another loss of internet connection. Now different logs:
Sat Sep 12 21:24:43 2020 daemon.err client_mgmt: client(F0-98-9D-72-5D-0E) not found in arp table disconnect_counter=0
Sat Sep 12 21:24:48 2020 daemon.err nrd[9625]: send ioctl failed
Sat Sep 12 21:25:00 2020 daemon.err client_mgmt: client(F0-98-9D-72-5D-0E) not found in arp table disconnect_counter=1
Sat Sep 12 21:25:18 2020 daemon.err client_mgmt: client(F0-98-9D-72-5D-0E) not found in arp table disconnect_counter=2
Sat Sep 12 21:25:26 2020 daemon.err client_mgmt: wireless client associate or disassociate.
Sat Sep 12 21:25:26 2020 daemon.err client_mgmt: client_mac:F0-A3-5A-26-49-F1, client_ifname:ath1, client_action:associate
Sat Sep 12 21:25:26 2020 daemon.err client_mgmt: client(F0-A3-5A-26-49-F1) assocaite by if(ath1).
Sat Sep 12 21:25:31 2020 daemon.err udhcpd[10348]: Found static lease: 6444a8c0
Sat Sep 12 21:25:31 2020 daemon.err udhcpd[10348]: Sending ACK to 192.168.68.100
Sat Sep 12 21:25:31 2020 daemon.err udhcpd[10348]: clear ip 6444a8c0