RBR350 wired connections and internet constantly dying

[Laberrhabarber]

I have the same problem.

On my router (AVM Fritzbox 7490) I connected the orbi with option 2 (DMZ) and it worked fine for 3-4 months.
Lately I have been having disconnections all the time. First internet and then wifi. The logs on the Fritzbox do not show any errors. The logs on the Orbi don't really say much. It looks like the Orbi restarts after the connection problem, since there is so little in the logs:

[DHCP IP: 192.168.1.xxx] to MAC address 94:a6:xxxxx, Saturday, August 13, 2022 16:26:02
[Access Control] Device DESKTOP-xxxx with MAC address D8:BC:xxxxxx is allowed to acc, Saturday, August 13, 2022 16:26:00
[Access Control] Device Unknown with MAC address 10:D5:xxxxx is allowed to access the , Saturday, August 13, 2022 16:25:54
[Time synchronized with NTP server] Saturday, August 13, 2022 16:25:53
[DHCP IP: 192.168.1.xx] to MAC address 10:d5:xxxxxx, Saturday, August 13, 2022 16:25:52
[DoS Attack: Kiss of Death] from source: 52.27.12.158, port: 123, Saturday, August 13, 2022 16:25:46
[Internet connected] IP address: 192.168.178.xxx, Saturday, August 13, 2022 16:25:32
[Initialized, firmware version: V4.4.0.10_2.10.63WW] Saturday, August 13, 2022 16:25:25

[FURRYe38]

What FW is loaded on the Orbi system? 

There is a new version of FW available

Has a power off for 1 minute then back ON with the ISP modem and router been performed since last update?

Be sure to restart your network in this sequence:

Turn off and unplug modem.

Turn off router and computers.

Plug in and turn on modem. Wait 2 minutes for it to connect.

Turn on the router and wait 2 minutes for it to connect.

Turn on computers and rest of network.

Has a factory reset and setup from scratch been performed since last FW update? 

[Laberrhabarber]

Thank you for the quick reply.
I have now installed the latest firmware (V4.4.1.29_3.10.80).
Subsequently, I have performed a reset on the router and the access points.

Now I test it, whether this was the solution and report again in a week at the latest.

One thing I can already say: The interface of the router has become faster.

[FURRYe38]

Let us know how it goes...