Since installing 17.23 on Fenix 7, watch freezes when using Wi-Fi.

you could try to re-install the current software:

• Go to your System > About menu
• press the top left Light Button 8 times
• Go to the very bottom
• select the option to reinstall the software

Thanks @matthias unfortunately that didn’t work. I did email Garmin support several days ago but have heard nothing in reply. 

If there is a support chat in your country I would try this option. Email often takes ages, especially now because many people have issues with the latest firmway.

Try downgrading

https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-7-series/372868/downgrade-to-stable-16-22---instructions

The suggestion from Garmin support was to try a beta update which should provide a fix. 

I’m not really a fan of beta releases due to bugs etc. 

I tried the downgrade option to 16.22 and that seems to have worked.

Auto update is now disabled !

As far as I can see, there is no newer version than 17.23 - also no beta version higher than 17.23. Did they suggest you upgrade to something that doesn't exist? They are getting better...

To be honest I don’t even bother enrolling on the beta program and checking. Just thought I’d be replacing one bug with another !

How often do newer beta versions typically come out?  I’m having same problem, but perhaps it’s easier to wait for the next update.

Most probably the next beta will come within the next 2 weeks. 

https://forums.garmin.com/beta-program/fenix-7-series/f/announcements

You have announcements of new beta versions, you have dates when they came out