Hi,
I have had a Linksys WRT1200AC v2 router for years and so far I had OpenWRT-15.05.1 (Caiman) installed. My wireless LAN worked really well. Then at the end of August I updated the router to OpenWrt 19.07.7 r11306-c4a6851c72 and LuCI to openwrt-19.07 branch (git-21.216.18871-86a3625).
Since then I have had problems with the two WLAN interfaces, Marvell 88W8864 802.11nac
Channel: 149 (5.745 GHz) is not displayed at all on the smartphone (Galaxy S7 edge) and
Marvell 88W8864 802.11bgn Channel: 11 (2.462 GHz) the smartphone sees, but does not receive a connection "IP address could not be obtained", and from time to time I have already read "Authentication error". Here are the logs from today's LuCI-Gui:
Sun Sep 12 09:53:16 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: authenticated
Sun Sep 12 09:53:16 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: associated (aid 1)
Sun Sep 12 09:53:16 2021 daemon.notice hostapd: wlan1: AP-STA-CONNECTED d8:c4:6a:c6:f6:28
Sun Sep 12 09:53:16 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 WPA: pairwise key handshake completed (RSN)
Sun Sep 12 09:53:51 2021 daemon.notice hostapd: wlan1: AP-STA-DISCONNECTED d8:c4:6a:c6:f6:28
Sun Sep 12 09:53:51 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: disassociated
Sun Sep 12 09:53:52 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Sun Sep 12 09:55:00 2021 cron.info crond[1626]: USER root pid 4714 cmd /sbin/fan_ctrl.sh
Sun Sep 12 09:56:35 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: authenticated
Sun Sep 12 09:56:35 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: associated (aid 1)
Sun Sep 12 09:56:35 2021 daemon.notice hostapd: wlan1: AP-STA-CONNECTED d8:c4:6a:c6:f6:28
Sun Sep 12 09:56:35 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 WPA: pairwise key handshake completed (RSN)
Sun Sep 12 09:57:11 2021 daemon.notice hostapd: wlan1: AP-STA-DISCONNECTED d8:c4:6a:c6:f6:28
Sun Sep 12 09:57:11 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: disassociated
Sun Sep 12 09:57:12 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Sun Sep 12 09:57:46 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: authenticated
Sun Sep 12 09:57:46 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: associated (aid 1)
Sun Sep 12 09:57:46 2021 daemon.notice hostapd: wlan1: AP-STA-CONNECTED d8:c4:6a:c6:f6:28
Sun Sep 12 09:57:46 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 WPA: pairwise key handshake completed (RSN)
Sun Sep 12 09:58:23 2021 daemon.notice hostapd: wlan1: AP-STA-DISCONNECTED d8:c4:6a:c6:f6:28
Sun Sep 12 09:58:23 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: disassociated
Sun Sep 12 09:58:24 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Sun Sep 12 09:58:24 2021 daemon.err uhttpd[1659]: luci: accepted login on / for root from 192.168.0.2
Sun Sep 12 09:58:27 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: authenticated
Sun Sep 12 09:58:27 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: associated (aid 1)
Sun Sep 12 09:58:27 2021 daemon.notice hostapd: wlan1: AP-STA-CONNECTED d8:c4:6a:c6:f6:28
Sun Sep 12 09:58:27 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 WPA: pairwise key handshake completed (RSN)
Sun Sep 12 09:59:03 2021 daemon.notice hostapd: wlan1: AP-STA-DISCONNECTED d8:c4:6a:c6:f6:28
Sun Sep 12 09:59:03 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: disassociated
Sun Sep 12 09:59:04 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Sun Sep 12 10:00:00 2021 cron.info crond[1626]: USER root pid 4832 cmd /sbin/fan_ctrl.sh
Sun Sep 12 10:05:00 2021 cron.info crond[1626]: USER root pid 5001 cmd /sbin/fan_ctrl.sh
Sun Sep 12 10:05:38 2021 user.notice dnsmasq: DNS rebinding protection is active, will discard upstream RFC1918 responses!
Sun Sep 12 10:05:38 2021 user.notice dnsmasq: Allowing 127.0.0.0/8 responses
Sun Sep 12 10:05:38 2021 daemon.crit dnsmasq[5153]: bad dhcp-option at line 33 of /var/etc/dnsmasq.conf.cfg01411c
Sun Sep 12 10:05:38 2021 daemon.crit dnsmasq[5153]: FAILED to start up
Sun Sep 12 10:05:38 2021 daemon.info procd: Instance dnsmasq::cfg01411c s in a crash loop 7 crashes, 0 seconds since last crash
Sun Sep 12 10:06:02 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: authenticated
Sun Sep 12 10:06:02 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: associated (aid 1)
Sun Sep 12 10:06:02 2021 daemon.notice hostapd: wlan1: AP-STA-CONNECTED d8:c4:6a:c6:f6:28
Sun Sep 12 10:06:02 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 WPA: pairwise key handshake completed (RSN)
Sun Sep 12 10:06:38 2021 daemon.notice hostapd: wlan1: AP-STA-DISCONNECTED d8:c4:6a:c6:f6:28
Sun Sep 12 10:06:38 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: disassociated
Sun Sep 12 10:06:39 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Sun Sep 12 10:06:42 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: authenticated
Sun Sep 12 10:06:42 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: associated (aid 1)
Sun Sep 12 10:06:42 2021 daemon.notice hostapd: wlan1: AP-STA-CONNECTED d8:c4:6a:c6:f6:28
Sun Sep 12 10:06:42 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 WPA: pairwise key handshake completed (RSN)
Sun Sep 12 10:07:19 2021 daemon.notice hostapd: wlan1: AP-STA-DISCONNECTED d8:c4:6a:c6:f6:28
Sun Sep 12 10:07:19 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: disassociated
Sun Sep 12 10:07:20 2021 daemon.info hostapd: wlan1: STA d8:c4:6a:c6:f6:28 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
I suspect something went wrong with the upgrade. And I'm just on the point of finding the right solution. Do you have any ideas how to solve the problem?
Many greetings and many thanks in advance
BrotherJ