Gateway Web Server Self Signed SSL Certificate Expired - How to create a fresh cert?

I’ve visited the relevant topics in the user manual, and followed similar link suggestions when creating this topic, but none of that reading has yielded an answer. A production gateway acting as a remote tag provider has a self signed SSL cert that has expired. This is not allowing me to add this gateway to a designer launcher. Visiting the gateway’s Network > Web Server page. There is a view details button…

I queried AI about the Generate CSR button, the answer implied this not for self signed certificates.

There was some suggestion about deleting the certificates from the file system, and re-starting the Ignition service, but I’d prefer to avoid that as it’s not terribly specific and I had hoped for a solution that did not involve stopping the gateway’s operation momentarily.