I’ve had similar problems in the past - apparently no internet connection, and both times I narrowed it down to the machine being unable to resolve domain names.

Turns out Tailscale had changed the IP address for the machines’ DNS resolution in resolv.conf to 100.100.100.100

That’s fine when the machine is connected to Tailscale but not when it isn’t!

Reverting the DNS IP back to whatever it was previously, or to something like 1.1.1.1 solved the problem for me, at least to the extent that it could resolve URLs again.

Worth a look, if only to rule it out…?

The grammar Nazis will hate me for this but I’m going with “A friend of mine and my wife’s” as the least horrible way of saying it.

“A friend of mine booked a table…” - all good

“A friend of my wife’s booked a table…” - yep - and check here if you don’t like “wife’s”: https://forum.wordreference.com/threads/a-friend-of-his-wifes.2438592/

“A friend of my wife’s and mine booked a table…” - nope

“A friend of mine and my wife’s booked a table…” - works for me

Where I live (New South Wales, Australia) the official way for cyclists to traverse junctions like this is to stop/slow down about where the back of the red car is, do a 90 degree turn to the right and cross the on-ramp - either cycling or walking - perpendicular to the direction of traffic, then get going again down the “far” side of the on-ramp (from the perspective of this image.)

Not perfect because unless there’s nothing coming down the ramp at all you still have to slow down/lose momentum if not actually stop, but definitely preferable to becoming a human zipper between two lanes of merging cars travelling three times faster than you are.