I have a similar problem.
I have noticed that the disconnection happens when there is high bandwith usage, and when i use a network speed tester. When it reaches a certain speed it crashes, blinks red then restarts in a few seconds. Very frustrating. I have to manualy limit apps (Steam downloading ) network bandwith in order to avoid disconnections.
Please help.
firmware: 1.1.3 Build 20211103 Rel. 32888
I don't know if this is relevant, but here are some rows from the error log:
Fri Jul 22 16:45:35 2022 daemon.err mcsd: mcManagerMCProcess: Flood table is non-empty, update multicast flood table, entry count is 1
Fri Jul 22 16:45:35 2022 daemon.err mcsd: mcManagerMCProcess: Interface eth0's forwarding table is changed
Fri Jul 22 16:45:35 2022 daemon.err mcsd: mcManagerMCProcess: Updated interface eth0 forwarding table successfully
Fri Jul 22 16:45:35 2022 daemon.err mcsd: ENTER mcManagerMCReadBufCB
Fri Jul 22 16:45:35 2022 daemon.err mcsd: ENTER mcManagerMCReadBufCB
Fri Jul 22 16:45:35 2022 daemon.err mcsd: Get netlink MSG 14 size 140 from br-lan
Fri Jul 22 16:45:35 2022 daemon.err mcsd: ENTER mcManagerMCReadBufCB
Fri Jul 22 16:45:35 2022 daemon.err mcsd: ENTER mcManagerMCReadBufCB
Fri Jul 22 16:45:35 2022 daemon.err mcsd: Get netlink MSG 100 size 52 from br-lan
Fri Jul 22 16:45:35 2022 daemon.err mcsd: mcManagerMCReadBufCB: Receive mdb updated event from br-lan
Fri Jul 22 16:45:35 2022 daemon.err mcsd: ENTER mcManagerMCReadBufCB
Fri Jul 22 16:45:35 2022 daemon.err mcsd: ENTER mcManagerMCReadBufCB
Fri Jul 22 16:45:35 2022 daemon.err mcsd: Get netlink MSG 17 size 6708 from br-lan
Fri Jul 22 16:45:35 2022 daemon.err mcsd: mcManagerMCProcess: Legacy node 0 - 1C:1B:0D:5F:3A:64, add it to flood table
Fri Jul 22 16:45:35 2022 daemon.err mcsd: mcManagerMCProcess: Legacy node 0, update forwarding table
Fri Jul 22 16:45:35 2022 daemon.err mcsd: ENTER mcManagerMCReadBufCB
Fri Jul 22 16:45:35 2022 daemon.err nrd[3656]: _get_vap_status: fgets failed.
Fri Jul 22 16:45:36 2022 daemon.err mcsd: ENTER mcManagerMCReadBufCB
Fri Jul 22 16:45:36 2022 daemon.err mcsd: Get netlink MSG 100 size 52 from br-lan
Fri Jul 22 16:45:36 2022 daemon.err mcsd: mcManagerMCReadBufCB: Receive mdb updated event from br-lan
Fri Jul 22 16:45:36 2022 daemon.err mcsd: ENTER mcManagerMCReadBufCB
Fri Jul 22 16:45:36 2022 daemon.err mcsd: ENTER mcManagerMCReadBufCB
Fri Jul 22 16:45:36 2022 daemon.err mcsd: Get netlink MSG 17 size 6708 from br-lan
Fri Jul 22 16:45:36 2022 daemon.err mcsd: mcManagerMCProcess: Legacy node 0 - 1C:1B:0D:5F:3A:64, add it to flood table
Fri Jul 22 16:45:36 2022 daemon.err mcsd: mcManagerMCProcess: Legacy node 0, update forwarding table
Fri Jul 22 16:45:36 2022 daemon.err mcsd: mcManagerMCProcess: Legacy node 1 - 1C:1B:0D:5F:3A:64, add it to flood table
Fri Jul 22 16:45:36 2022 daemon.err mcsd: mcManagerMCProcess: Legacy node 1, update forwarding table
Fri Jul 22 16:45:36 2022 daemon.err mcsd: mcManagerMCProcess: Flood table is changed, update multicast flood table
Fri Jul 22 16:45:36 2022 daemon.err mcsd: mcManagerMCProcess: Flood table is non-empty, update multicast flood table, entry count is 2
Fri Jul 22 16:45:36 2022 daemon.err mcsd: mcManagerMCProcess: Interface eth0's forwarding table is changed
Fri Jul 22 16:45:36 2022 daemon.err mcsd: mcManagerMCProcess: Updated interface eth0 forwarding table successfully
Fri Jul 22 16:45:36 2022 daemon.err mcsd: ENTER mcManagerMCReadBufCB
Fri Jul 22 16:45:36 2022 daemon.err mcsd: ENTER mcManagerMCReadBufCB
Fri Jul 22 16:45:36 2022 daemon.err mcsd: Get netlink MSG 14 size 228 from br-lan