is this part of the problem ?
I use ath10k-ct and switch back to non-ct firmware and modules !
On the main routeur (LGM) I have centralized the AP logs...
Here a android getting WiFi access but no IP so no Internet ! (part of the problem)
Apr 18 17:24:47 BORNE-RDC hostapd: wlan0: AP-STA-DISCONNECTED 04:b1:67:4f:6c:c0
Apr 18 17:24:51 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 IEEE 802.11: authenticated
Apr 18 17:24:51 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 IEEE 802.11: associated (aid 7)
Apr 18 17:24:51 BORNE-RDC hostapd: wlan0: AP-STA-CONNECTED 04:b1:67:4f:6c:c0
Apr 18 17:24:51 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 RADIUS: starting accounting session A63E4706601F75CB
Apr 18 17:24:51 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 WPA: pairwise key handshake completed (RSN)
Apr 18 15:24:51 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:24:51 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 15:24:56 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:24:56 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 15:25:00 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:25:00 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 17:25:06 BORNE-RDC hostapd: wlan0: AP-STA-DISCONNECTED 04:b1:67:4f:6c:c0
Apr 18 17:25:10 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 IEEE 802.11: authenticated
Apr 18 17:25:10 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 IEEE 802.11: associated (aid 7)
Apr 18 17:25:10 BORNE-RDC hostapd: wlan0: AP-STA-CONNECTED 04:b1:67:4f:6c:c0
Apr 18 17:25:10 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 RADIUS: starting accounting session 427B4A0FB3E1E7B1
Apr 18 17:25:10 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 WPA: pairwise key handshake completed (RSN)
Apr 18 15:25:10 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:25:10 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 15:25:13 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:25:13 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 15:25:16 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:25:16 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 17:25:21 BORNE-RDC hostapd: wlan0: AP-STA-DISCONNECTED 04:b1:67:4f:6c:c0
Apr 18 17:25:25 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 IEEE 802.11: authenticated
Apr 18 17:25:25 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 IEEE 802.11: associated (aid 7)
Apr 18 17:25:25 BORNE-RDC hostapd: wlan0: AP-STA-CONNECTED 04:b1:67:4f:6c:c0
Apr 18 17:25:25 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 RADIUS: starting accounting session 10131A9913B9652A
Apr 18 17:25:25 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 WPA: pairwise key handshake completed (RSN)
Apr 18 15:25:25 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:25:25 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 15:25:29 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:25:29 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 15:25:33 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:25:33 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 17:25:37 BORNE-RDC hostapd: wlan0: AP-STA-DISCONNECTED 04:b1:67:4f:6c:c0
Apr 18 17:25:41 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 IEEE 802.11: authenticated
Apr 18 17:25:41 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 IEEE 802.11: associated (aid 7)
Apr 18 17:25:41 BORNE-RDC hostapd: wlan0: AP-STA-CONNECTED 04:b1:67:4f:6c:c0
Apr 18 17:25:41 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 RADIUS: starting accounting session C2296C402425CE0F
Apr 18 17:25:41 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 WPA: pairwise key handshake completed (RSN)
Apr 18 15:25:41 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:25:41 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 15:25:44 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:25:44 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 15:25:48 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:25:48 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 17:25:52 BORNE-RDC hostapd: wlan0: AP-STA-DISCONNECTED 04:b1:67:4f:6c:c0
Apr 18 17:25:57 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 IEEE 802.11: authenticated
Apr 18 17:25:57 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 IEEE 802.11: associated (aid 7)
Apr 18 17:25:58 BORNE-RDC hostapd: wlan0: AP-STA-CONNECTED 04:b1:67:4f:6c:c0
Apr 18 17:25:58 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 RADIUS: starting accounting session 89EB21019BD85B62
Apr 18 17:25:58 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 WPA: pairwise key handshake completed (RSN)
Apr 18 15:25:58 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:25:58 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 15:26:00 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:26:00 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 15:26:04 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:26:04 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 17:26:08 BORNE-RDC hostapd: wlan0: AP-STA-DISCONNECTED 04:b1:67:4f:6c:c0
Apr 18 17:26:11 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 IEEE 802.11: authenticated
Apr 18 17:26:11 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 IEEE 802.11: associated (aid 7)
Apr 18 17:26:11 BORNE-RDC hostapd: wlan0: AP-STA-CONNECTED 04:b1:67:4f:6c:c0
Apr 18 17:26:11 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 RADIUS: starting accounting session 1ED64F48698C4335
Apr 18 17:26:11 BORNE-RDC hostapd: wlan0: STA 04:b1:67:4f:6c:c0 WPA: pairwise key handshake completed (RSN)
Apr 18 15:26:11 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:26:11 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 15:26:14 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:26:14 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
Apr 18 15:26:18 LGM dnsmasq-dhcp[2676]: DHCPDISCOVER(br-lan) 04:b1:67:4f:6c:c0
Apr 18 15:26:18 LGM dnsmasq-dhcp[2676]: DHCPOFFER(br-lan) 10.6.2.126 04:b1:67:4f:6c:c0
root@LGM:~# tcpdump -i br-lan -n port 67 and port 68
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on br-lan, link-type EN10MB (Ethernet), capture size 262144 bytes
17:54:48.614283 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 04:b1:67:4f:6c:c0, length 294
17:54:48.617405 IP 10.6.2.1.67 > 10.6.2.126.68: BOOTP/DHCP, Reply, length 310
17:54:54.494603 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 04:b1:67:4f:6c:c0, length 294
17:54:54.498114 IP 10.6.2.1.67 > 10.6.2.126.68: BOOTP/DHCP, Reply, length 310
17:55:02.938615 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 04:b1:67:4f:6c:c0, length 294
17:55:02.942330 IP 10.6.2.1.67 > 10.6.2.126.68: BOOTP/DHCP, Reply, length 310
17:55:08.701774 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 04:b1:67:4f:6c:c0, length 294
17:55:08.705668 IP 10.6.2.1.67 > 10.6.2.126.68: BOOTP/DHCP, Reply, length 310
17:55:11.303001 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from d8:12:65:85:d4:ad, length 289
17:55:11.306966 IP 10.6.2.1.67 > 10.6.2.191.68: BOOTP/DHCP, Reply, length 310
17:55:11.382997 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from d8:12:65:85:d4:ad, length 295
17:55:11.398933 IP 10.6.2.1.67 > 10.6.2.191.68: BOOTP/DHCP, Reply, length 317
17:55:16.345549 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 04:b1:67:4f:6c:c0, length 294
17:55:16.349238 IP 10.6.2.1.67 > 10.6.2.126.68: BOOTP/DHCP, Reply, length 310
17:55:22.309138 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 04:b1:67:4f:6c:c0, length 294
17:55:22.314506 IP 10.6.2.1.67 > 10.6.2.126.68: BOOTP/DHCP, Reply, length 310
17:55:29.793887 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 04:b1:67:4f:6c:c0, length 294
17:55:29.797982 IP 10.6.2.1.67 > 10.6.2.126.68: BOOTP/DHCP, Reply, length 310
17:55:35.515645 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 04:b1:67:4f:6c:c0, length 294
17:55:35.522461 IP 10.6.2.1.67 > 10.6.2.126.68: BOOTP/DHCP, Reply, length 310