I'm running the VTiger appliance from TKL and it's still under 12.1--no upgrade yet available. In the last few days, webmin access has been incredibly slow--just getting the log in page to appear takes many tries as my browser times out. Each step triggers a long wait--even to log in, I usually have to wait 10 minutes to get to webmin proper.  The menu is not slow, but trying to bring up the command shell, or any other option, requires this long wait.

I rebooted the server and CPU, IO & Net usage are all low. The Vtiger app actually runs very fast. Any ideas on what I might try?