Getting 400 Bad Request Error
Getting 400 bad request error message means the Prolaborate config file was not updated with correct port number in Prolaborate Config file.
To avoid this, proper Port and Protocol details in Config file needs to be provided using Prolaborate service management. If the correct information is entered the by the user, then the Prolaborate engine should work fine.
Parallelly, IIS needs to be stopped which is already running behind the application. This may interrupt the V5 port execution which results in getting 400 bad requests from browser.