Shells & Payloads: Reverse Shell

I am having real issues trying to maintain a stable RDP connection for this question: “Connect to the target via RDP and establish a reverse shell session with your attack box then submit the hostname of the target box.”. I have reset several times but the connection breaks down before I can even open powershell. Same issue in Pwnbox and my local VM connected through the VPN. It is a trivial task but very frustrating to not be able to tick it off as complete.