Wireguard launch blocked by Avira's real-time protection

Hello, I am using Avira free version.
I cannot launch Wireguard VPN when real-time protection is active, it works without problem when protection is deactivated, and while Wireguard is running real time protection can be reactivated, and Wireguard continue without 
In the real-time protection options, I added Wireguard.exe in the authorized processes, as well as its directory in Excluded folders, but the result is the same, the launch of Wiregaurd fails
Do you have any other ideas?
Thanks