Offering remote assistance on Windows

Apparently (& in some cases), screen sharing in Microsoft Teams/Skype4Business is not working as it should when you need to control your counterparts pc and in that case, you can resort to an alternative called "Windows remote assistant" (MSRA) which is installed by default on all windows machines... you can start it by running the following from the command line (cmd) or from the "run window" (Win+ r):  msra /offerra <computername>
The other person will have to accept this request and after that, you will need to ask for remote control. When that request is approved, all you need to do is control the other his/her machine

The catch is that you need to be in the same user domain...