garmin express quit unexpectedly 7.16.1.0

Laptop or desktop and what version of Windows?  Have you done any of the Windows updates that came out this week?

Same problem here; in my case, the issue is addressed by the customary uninstalling/reinstalling (mandatory selection of "Delete all Garmin Express files from your computer" or it wouldn’t work otherwise).

Hello, thanks!! workedd!! but the garmin servers is out, i can't add my watch hahaha!!! bad luck for me

It appears that a few glitches are plaguing Garmin’s infrastructure since the beginning of the week (same here, of course).

"we're unable to add this device because our servers are unavaliable at this time"

That’s the one, mate. Just sit it out and wait until they’ll get a wriggle on it.

thanks dude!!

appreciate your help :D

Yep, stopped working after update.  Did a complete uninstall and then installed latest version from scratch.  It starts, but due to uninstall I have to add all my devices again and this doesn't work, keeps returning "Server unavailable".

I downgraded back to 7.15.0.0 and working perfectly again

Downgrading to 7.15.x.0 addresses the problem too, which leads to infer that Garmin has some infrastructure migration going on and it appears they’re not getting the client right (this is the second botched attempt, after the 7.16.0.0): let’s just wait and see (my money is on an imminent 7.16.2.0).

Edit: in order to satisfy my own curiosity, I had a (very) quick look under the hood, and it appears that Garmin Express 7.16.x.0 crashes when trying to communicate with a never seen before, however properly answered, webtools-test.garmin.com (before it was the usual resources - res.garmin.com – followed by the actual single sign on – sso.garmin.com - follow by everything else, which are now weirdly instanced out of sequence).

Edit 2: If you guys can't wait and you REALLY want to roll back to 7.15.0.0, since Garmin does not keep previous versions available, I suggest you Google the SHA256 checksum, that being f10cc83fcdd4cf3fc8002068dadba6ab2073bd735f4e1e822012d07e0aeead47 ;)