I have two almost identical Macbooks Pro (MacBook Pros?) on my desk:
Macbook Pro 2019 with 10.15.7 Macbook Pro 2018 with 10.15.7
I have an expensive router with a very stable connection on all devices.
A few months ago, the 2018 MBP started to sporadically reconnect to the WLAN about once per hour, which is taking roughly 2 seconds to fulfill. No errors or problems, but the internet is gone for 1-2 seconds during that reconnect.
This happens even when actively using the notebook, no sleep mode or whatsoever involved.
It only happens on the 2018 Macbook, both have installed the same software.
Both are working on 5Ghz ac/Wi-Fi 5. The problem is not due to DHCP lease resetting.
Is there any service running which could cause the reconnects?
Is there any option?
My router is not showing any problems with neither device but I have enabled verbose logging for now.
I'm currently running the Wireless Diagnostics in capturing mode and waiting for the next reset to happen.
Update with verbose log from my router
The router is showing a lot of entries like these:
12.01.21 19:45:53 New wireless device registered itself (5 GHz), 1300 Mbit/s, macbook, IP 192.168.178.1, MAC 38:x:x:... 12.01.21 19:45:51 Wireless device was deregistered (5 GHz), macbook, IP 192.168.178.1, MAC 38:x:x:...