We had the same exact issue after upgrading our connection servers to 2111.

With the help of VMWare technical support we were able to get things working by doing the following 2 things.

1. Add these two lines to the file c:\Program Files\VMWare\VMWare View\Server\sslgateway\conf\locked.properties
   1. checkOrigin=false
   2. enableCORS=false
2. Use 127.0.0.1 instead of localhost in the URL.
   1. The updates that patch the Apache Log4j vulnerability apparently prevents the use of localhost
   2. Example: https://127.0.0.1/admin
   3. The FQDN should work as well (https://myConnectionServer.domain.com/admin)

Hope this helps.