I have been using Rancher for a while now (over 5 years) and it has been flawless. Lately when I try to spin up a docker instance of Rancher, it never fully completes and just spams "RDPDialer is not yet built" and other "RDP Dialer" related errors.

Check for an error in the logs about installing the remotedialer proxy chart

okie....we're deployed in an air-gapped enviro...is this chart something that I can airlift into the enviro?

there is an option to use bundled charts that you should have enabled if this is an airgap env

okie...do you have any Rancher website links that you can point me to?

awesome....Let me do some reading and I'll hit you back if I get stuck. Thank you sooooo much.

the refactor to move the remotedialer proxy out of rancher itself is fairly recent. It used to be built in, now it runs separately and rancher connects to it.

do you know offhand which was the last buld that had it?

No, but stuff like that tends to be changed as part of a new minor so if you’re seeing this on 2.12, you could go back to using 2.11 while you figure out what you need to do to properly configure 2.12 in your environment.