How to test individual servers using session broker

Hi,
We have 6 terminal servers and have recently switched from NLB to Session broker using RR DNS. This method balances our users much better, but has introduced a new issue. After we make a change to the terminal servers (such as applying a patch) We like to
log onto to each one with a user account and ensure everything is working as expected. But now we've found with session broker when we try to log directly onto a server we are redirected to the farm and put on the same server over and over again. We know about
using mstsc /admin to log onto as admin, but this is not the functionality we want to test (are admin accounts can't do things the user account can such as access the internet, and there is a concern that if we are using an admin account it may mask an issue
that the less privileged user accounts might have.
Thanks,

" Doesn't applying a patch to a server change the state and thus introduce risk?" Yes it does, which is why we are testing the server, but we prefer to test the server in the actual state the users will be using the server, plus there is the concern
if a server wasn't added back it it would cause a problem.
"If you are concerned about temporarily changing the load-balancing participation of each server then I recommend you go with "bulk" testing--keep logging on users until you hit all of your RDSH servers." The problem with this approach is that we would be
allowing users to log onto to servers before testing was completed (we do these changes off hours). And since right now we only have one user account to test with what is happening we log onto the first server test it, log off, but then we are repeatably load
balanced onto that server.
"Another idea would be to write a custom plugin for the RD Connection Broker that would change the load balancing logic.  For example, when enabled, it would look at an xml file to determine if the user was listed and if yes direct them to a certain
server, otherwise use default load balancing logic."
We might have to look into this idea.
Thanks for your suggestions.
Rich

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