Shared drive file transfer slow when RD gateway is in use

Hi Team,

A noticeable file transfer speed difference was captured from a project that I have been working on via Guacamole. However, this is not happening while using Microsoft RDP client on Windows or Mac.

Specifically, when we transfer a 20mb file from a shared drive to a local hard disk, the same server with RD Gateway took over 3mins whereas 20s without the gateway. (Robocopy was used for benchmarking in this test.)

It has been verified that the specs of the server is not the bottle neck and we don't have additional security scanning going one during the test.

All the different security mode have been tested but none of them made a difference.

Please let me know if there are any settings or solutions that can help with this.

Thank you,

Ares