We are in the process of deploying Pritunl Enterpise, and are doing final checks on functionality before wide rollout.
Upon testing a somewhat related subject. I noticed that on Windows, the search domain isn’t cleared from the pritunl-device when the OPVN connection has been disconnected.
On Windows with OpenVPN the DNS configuration is handled entirely by the OpenVPN process. If there are issues with it isn’t something that will likely be fixed in the Pritunl Client code.