Hi, 

I have a 3 months old Archer AX20 that keeps disconnecting the WAN link very often, sometimes even multiple times a day.  When this is happening, the WAN LED goed amber, and there is no internet for any device, regardless of the connection - wired or wireless. The only fix is to restart the router or release/renew the internet connection. As you can see in the log below, there are a lot of WAN on and off entries.

I called my ISP and there is nothing abnormal on their side. They said that the router is dropping the connection.

Here is an example of the log from today when the issue happened:

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#                  Archer AX20 System Log
# Time = 2022-01-13 13:25:46
# H-Ver = 1.0.0 ; S-Ver = 1.3.2 Build 20210902 rel.35277
# LAN: I = 192.168.1.1 ; M = 255.255.255.0 ; MAC = E8:48:B8:92:4F:F4 
# WAN: W = dhcp ; I = XX ; M = 255.255.255.192 ; MAC = XX
#      G = XX ; D1 = XX ; D2 = XX 
# Clients connected: 7 ; WI-FI : 5 
####################################################################
2022-01-13 13:20:14 traffic-stats[7569]: <6> 269004 stats reset
2022-01-13 13:20:14 network[14282]: <6> 290005 Reload config
2022-01-13 13:20:13 network[14282]: <6> 290130 Set IPv6 status to off, protocol is <null>
2022-01-13 13:20:05 network[14056]: <6> 290003 Connect interface wanv6
2022-01-13 13:19:59 traffic-stats[7569]: <6> 269004 stats reset
2022-01-13 13:19:59 network[13791]: <6> 290005 Reload config
2022-01-13 13:19:59 network[13791]: <6> 290130 Set IPv6 status to on, protocol is <null>
2022-01-13 11:53:38 led-controller[1102]: <6> 288051 Start to run WAN1_ON
2022-01-13 11:53:38 led-controller[1102]: <6> 288051 Start to run WAN0_OFF
2022-01-13 11:53:38 led-controller[1102]: <6> 288051 Start to run LAN_ON
2022-01-13 11:53:25 led-controller[1102]: <6> 288051 Start to run WAN1_OFF
2022-01-13 11:53:25 led-controller[1102]: <6> 288051 Start to run WAN0_ON
2022-01-13 11:53:25 led-controller[1102]: <6> 288051 Start to run LAN_ON
2022-01-13 11:53:23 led-controller[1102]: <6> 288051 Start to run WAN1_OFF
2022-01-13 11:53:23 led-controller[1102]: <6> 288051 Start to run WAN0_OFF
2022-01-13 11:53:23 led-controller[1102]: <6> 288051 Start to run LAN_ON
2022-01-13 10:44:00 led-controller[1102]: <6> 288051 Start to run WAN1_ON
2022-01-13 10:44:00 led-controller[1102]: <6> 288051 Start to run WAN0_OFF
2022-01-13 10:44:00 led-controller[1102]: <6> 288051 Start to run LAN_ON
2022-01-13 10:43:58 led-controller[1102]: <6> 288051 Start to run WAN1_OFF
2022-01-13 10:43:58 led-controller[1102]: <6> 288051 Start to run WAN0_ON
2022-01-13 10:43:58 led-controller[1102]: <6> 288051 Start to run LAN_ON
2022-01-13 10:43:56 led-controller[1102]: <6> 288051 Start to run WAN1_OFF
2022-01-13 10:43:56 led-controller[1102]: <6> 288051 Start to run WAN0_OFF
2022-01-13 10:43:56 led-controller[1102]: <6> 288051 Start to run LAN_ON
2022-01-13 10:39:55 upnp[27053]: <6> 217505 Service stop
2022-01-13 10:39:54 remote-management[26750]: <6> 282505 Service stop
2022-01-13 10:39:45 nat[25225]: <5> 211054 Virtual server created succeeded[ex-port:53 ip:192.168.1.2 in-port:53 protocol:all]
2022-01-13 10:39:45 nat[25225]: <5> 211054 Virtual server created succeeded[ex-port:443 ip:192.168.1.2 in-port:443 protocol:tcp]
2022-01-13 10:39:45 nat[25225]: <5> 211054 Virtual server created succeeded[ex-port:16881 ip:192.168.1.2 in-port:16881 protocol:tcp]
2022-01-13 10:39:45 nat[25225]: <5> 211054 Virtual server created succeeded[ex-port:6881 ip:192.168.1.2 in-port:6881 protocol:udp]
2022-01-13 10:39:44 nat[25225]: <5> 211054 Virtual server created succeeded[ex-port:32829 ip:192.168.1.2 in-port:32400 protocol:tcp]
2022-01-13 10:39:44 nat[25225]: <5> 211054 Virtual server created succeeded[ex-port:1194 ip:192.168.1.2 in-port:1194 protocol:udp]
2022-01-13 10:39:42 nat[25225]: <6> 211501 Initialization succeeded
2022-01-13 10:39:41 nat[25225]: <6> 211501 Initialization succeeded
2022-01-13 10:39:35 network[24644]: <6> 290003 Connect interface wan
2022-01-13 10:39:34 nat[24306]: <6> 211501 Initialization succeeded
2022-01-13 10:39:34 nat[24306]: <6> 211501 Initialization succeeded
2022-01-13 10:39:33 network[24303]: <6> 290004 Disconnect interface wan
2022-01-13 10:39:23 led-controller[1102]: <6> 288051 Start to run WAN1_ON
2022-01-13 10:39:23 led-controller[1102]: <6> 288051 Start to run WAN0_OFF
2022-01-13 10:39:23 led-controller[1102]: <6> 288051 Start to run LAN_ON
2022-01-13 10:39:19 upnp[23559]: <6> 217505 Service stop
2022-01-13 10:39:18 remote-management[23250]: <6> 282505 Service stop
2022-01-13 10:39:10 nat[21907]: <5> 211054 Virtual server created succeeded[ex-port:53 ip:192.168.1.2 in-port:53 protocol:all]
2022-01-13 10:39:09 nat[21907]: <5> 211054 Virtual server created succeeded[ex-port:443 ip:192.168.1.2 in-port:443 protocol:tcp]
2022-01-13 10:39:09 nat[21907]: <5> 211054 Virtual server created succeeded[ex-port:16881 ip:192.168.1.2 in-port:16881 protocol:tcp]
2022-01-13 10:39:09 nat[21907]: <5> 211054 Virtual server created succeeded[ex-port:6881 ip:192.168.1.2 in-port:6881 protocol:udp]
2022-01-13 10:39:09 nat[21907]: <5> 211054 Virtual server created succeeded[ex-port:32829 ip:192.168.1.2 in-port:32400 protocol:tcp]
2022-01-13 10:39:08 nat[21907]: <5> 211054 Virtual server created succeeded[ex-port:1194 ip:192.168.1.2 in-port:1194 protocol:udp]
2022-01-13 10:39:06 nat[21907]: <6> 211501 Initialization succeeded
2022-01-13 10:39:06 nat[21907]: <6> 211501 Initialization succeeded
2022-01-13 10:39:02 led-controller[1102]: <6> 288051 Start to run WAN1_OFF
2022-01-13 10:39:02 led-controller[1102]: <6> 288051 Start to run WAN0_ON
2022-01-13 10:39:02 led-controller[1102]: <6> 288051 Start to run LAN_ON
2022-01-13 10:39:00 led-controller[1102]: <6> 288051 Start to run WAN1_OFF
2022-01-13 10:39:00 led-controller[1102]: <6> 288051 Start to run WAN0_OFF
2022-01-13 10:39:00 led-controller[1102]: <6> 288051 Start to run LAN_ON
2022-01-13 10:39:00 nat[21035]: <6> 211501 Initialization succeeded
2022-01-13 10:39:00 nat[21035]: <6> 211501 Initialization succeeded
2022-01-13 10:37:08 led-controller[1102]: <6> 288051 Start to run WAN1_OFF
2022-01-13 10:37:08 led-controller[1102]: <6> 288051 Start to run WAN0_ON
2022-01-13 10:37:08 led-controller[1102]: <6> 288051 Start to run LAN_ON