Hi @Calvin Goodman
I don’t think it is directly related to your docking.
More likely, you should have a wrong or an old password that is saved in one or more apps, services, task or what ever on the laptop that, once connected to the network that app, services, task try to authenticate in the background and because of your AD password policy the account get locked after reaching the max attempt limit.
ALtools from Microsoft already mentioned below or any other doings the same from another editor will help you identifying the app, scheduled task, service sending the bad password.
Sometimes it is just a stale session that need to be terminated correctly.
If you are 100% sure that it is linked to the docking and it affect many user the same way try to find if there is not a common gpo pushing a script or something related to the docking .
There are few other option to follow, if this doesn’t fix it...
Hope this will be helpful.