NetworkManager reports disconnect/reconnect many times a day

[Paul Smith]

On Sat, 2020-12-05 at 13:53 -0500, Paul Smith wrote:
> Has anyone else noticed this?  If you run:
> 
>   journalct --unit NetworkManager --since yesterday
> 
> do you see the CONNECTED_SITE / CONNECTED_GLOBAL messages (these are
> the only ones printed at "INFO" level which is the default log level)
> appear randomly / not when you expect your network connection to go
> down?  If lots of people are seeing it then it's most likely an
> Ubuntu server problem.

So yesterday about 4pm I configured NetworkManager to use a different
server (not connectivity-check.ubuntu.com) for connectivity checking
and so far I've not had a single instance of CONNECTED_SITE /
CONNECTED_GLOBAL appear in my logs.

Of course it could just be that it's the weekend or something so I'll
have to wait longer to be sure, but at the moment it seems to me more
likely to be an issue with the Ubuntu connectivity server being
overloaded than an issue with my local connection.

Of course that means this won't help me figure out what's happening
with my IoT wifi connections being wonky: I bought a pretty heavy-duty
wireless router a couple of years ago and I'd hate to think it was
having problems already.  I don't have many close neighbors so it
shouldn't be interference and my levels seem pretty strong.  Hrm. Well,
it's not a problem with my Ubuntu system, apparently...