I see a lot of folks having the same issue on here, and each has been asked to start thier own thread on the topic. Below is a section of the system log. These messages happen 24/7, every 10 seconds.

What do they mean? 

My wifi connected devices, specifically smart home devices (Ring, Sonos, Honeywell, Logitech/Harmony, Wemo) are all experiencing a delay in processing requests. 

My HP laptop connected wirelessly 5Ghz also expereinces a delay. It does not report a dropped internet connection, but responds as if the internet has been disconnected, especially during video conference calls.

My Acer Windows 10 desktop, wired connection, drops or clips when streaming music or video from any internet source. 

The devices do not report dropped internet connectivity and the LED's are alwasy green. 

When I connect directly to the ISP's wifi modem (or direct wired) there are no issues.

I have seen errors in the log file relating to devices being issued a clear IP address command. This seems to happen regularly to all devices. I assume this is tied to the DHCP lease times? Maybe not? 

Tue Nov 23 12:41:06 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshAddMsgToTxQueue idx: 0x0, Msg Len: 30, Repeat: 2
Tue Nov 23 12:41:06 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 2, length : 30
Tue Nov 23 12:41:06 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 1, length : 30
Tue Nov 23 12:41:07 2021 user.err csrMeshGw[7315]: 
CsrMeshMsgQRead: qId=0 errno=42, No message of desired type!!!!
Tue Nov 23 12:41:16 2021 user.err csrMeshGw[7315]: 
CsrMeshMuxDemuxFindModelRes : Event : 0xef01, Response Event : 0xffff
Tue Nov 23 12:41:16 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshAddMsgToTxQueue idx: 0x0, Msg Len: 30, Repeat: 2
Tue Nov 23 12:41:16 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 2, length : 30
Tue Nov 23 12:41:16 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 1, length : 30
Tue Nov 23 12:41:17 2021 user.err csrMeshGw[7315]: 
CsrMeshMsgQRead: qId=0 errno=42, No message of desired type!!!!
Tue Nov 23 12:41:26 2021 user.err csrMeshGw[7315]: 
CsrMeshMuxDemuxFindModelRes : Event : 0xef01, Response Event : 0xffff
Tue Nov 23 12:41:26 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshAddMsgToTxQueue idx: 0x0, Msg Len: 30, Repeat: 2
Tue Nov 23 12:41:26 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 2, length : 30
Tue Nov 23 12:41:26 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 1, length : 30
Tue Nov 23 12:41:27 2021 user.err csrMeshGw[7315]: 
CsrMeshMsgQRead: qId=0 errno=42, No message of desired type!!!!
Tue Nov 23 12:41:36 2021 user.err csrMeshGw[7315]: 
CsrMeshMuxDemuxFindModelRes : Event : 0xef01, Response Event : 0xffff
Tue Nov 23 12:41:36 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshAddMsgToTxQueue idx: 0x0, Msg Len: 30, Repeat: 2
Tue Nov 23 12:41:36 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 2, length : 30
Tue Nov 23 12:41:36 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 1, length : 30
Tue Nov 23 12:41:37 2021 user.err csrMeshGw[7315]: 
CsrMeshMsgQRead: qId=0 errno=42, No message of desired type!!!!
Tue Nov 23 12:41:42 2021 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Tue Nov 23 12:41:43 2021 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Tue Nov 23 12:41:46 2021 user.err csrMeshGw[7315]: 
CsrMeshMuxDemuxFindModelRes : Event : 0xef01, Response Event : 0xffff
Tue Nov 23 12:41:46 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshAddMsgToTxQueue idx: 0x0, Msg Len: 30, Repeat: 2
Tue Nov 23 12:41:46 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 2, length : 30
Tue Nov 23 12:41:46 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 1, length : 30
Tue Nov 23 12:41:47 2021 user.err csrMeshGw[7315]: 
CsrMeshMsgQRead: qId=0 errno=42, No message of desired type!!!!
Tue Nov 23 12:41:49 2021 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Tue Nov 23 12:41:50 2021 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Tue Nov 23 12:41:56 2021 user.err csrMeshGw[7315]: 
CsrMeshMuxDemuxFindModelRes : Event : 0xef01, Response Event : 0xffff
Tue Nov 23 12:41:56 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshAddMsgToTxQueue idx: 0x0, Msg Len: 30, Repeat: 2
Tue Nov 23 12:41:56 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 2, length : 30
Tue Nov 23 12:41:56 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 1, length : 30
Tue Nov 23 12:41:57 2021 user.err csrMeshGw[7315]: 
CsrMeshMsgQRead: qId=0 errno=42, No message of desired type!!!!
Tue Nov 23 12:42:06 2021 user.err csrMeshGw[7315]: 
CsrMeshMuxDemuxFindModelRes : Event : 0xef01, Response Event : 0xffff
Tue Nov 23 12:42:07 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshAddMsgToTxQueue idx: 0x0, Msg Len: 30, Repeat: 2
Tue Nov 23 12:42:07 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 2, length : 30
Tue Nov 23 12:42:07 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 1, length : 30
Tue Nov 23 12:42:07 2021 user.err csrMeshGw[7315]: 
CsrMeshMsgQRead: qId=0 errno=42, No message of desired type!!!!
Tue Nov 23 12:42:17 2021 user.err csrMeshGw[7315]: 
CsrMeshMuxDemuxFindModelRes : Event : 0xef01, Response Event : 0xffff
Tue Nov 23 12:42:17 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshAddMsgToTxQueue idx: 0x0, Msg Len: 30, Repeat: 2
Tue Nov 23 12:42:17 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 2, length : 30
Tue Nov 23 12:42:17 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 1, length : 30
Tue Nov 23 12:42:17 2021 user.err csrMeshGw[7315]: 
CsrMeshMsgQRead: qId=0 errno=42, No message of desired type!!!!
Tue Nov 23 12:42:20 2021 user.warn IMPROXY: WARNING[mcast_recv_igmp@753]: Don't exist this Downstream VIF
Tue Nov 23 12:42:20 2021 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.252 is Local Network Control Block
Tue Nov 23 12:42:21 2021 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Tue Nov 23 12:42:21 2021 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Tue Nov 23 12:42:25 2021 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Tue Nov 23 12:42:25 2021 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Tue Nov 23 12:42:27 2021 user.err csrMeshGw[7315]: 
CsrMeshMuxDemuxFindModelRes : Event : 0xef01, Response Event : 0xffff
Tue Nov 23 12:42:27 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshAddMsgToTxQueue idx: 0x0, Msg Len: 30, Repeat: 2
Tue Nov 23 12:42:27 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 2, length : 30
Tue Nov 23 12:42:27 2021 user.err csrMeshGw[7315]: MSGQ :: CsrMeshGetMsgFromTxQueue curTxIndex : 0, tag count : 1, length : 30
Tue Nov 23 12:42:27 2021 user.err csrMeshGw[7315]: 
CsrMeshMsgQRead: qId=0 errno=42, No message of desired type!!!!