Mac headphone no sound

One possible solution:
system preferences -> sound -> output -> external headphones

And then check whether the output volume is non-zero and whether it's muted

how to freeze your puregym membership if you have a fixed-term / annual membership

You can't

"

1. If you have purchased a Fixed Term membership you will be entitled to 50% of the pro rata’d amount as refund for any unused membership.
2. You cannot freeze your membership on fixed term membership.

"

See this link:
https://www.puregym.com/membership-terms-conditions/#:~:text=You%20cannot%20freeze%20your%20membership%20on%20fixed%20term%20membership.

[solved] Cannot connect to Sanger network drive

I encountered this problem: I couldn't connect to Sanger network drive.

The interesting thing is that if I use an ethernet cable I will be able to connect to it.

It turned out that my wifi setting (Network -> DNS) stored ebi's domains as default.
After deleting them it worked.

[Mac] Bluejeans doesn't work with external headphones

If may occur that your bluejeans doesn't like your external headphone connected to your mac
You may try System Preferences  -> Sound -> Output -> External headphones but it still didn't work.

The solution is in Bluejeans itself

You should do this:
 BlueJeans -> Preferences -> Devices -> Speaker -> Headphones

That will do the work