Follow these steps:

1. Assign the IPS rule "1000763 - URI Length Restriction" if it is not assigned to the computer(s) in question. Or assign the rule to the corresponding policy as necessary, so as to make the change effective to all computers using this policy.

   

   

2. In the rule's configuration options,  increase "Maximum URI path length" and "Maximum number of directory levels in URI path" as needed, their default values are 1024 and 100 respectively, for example, increase to 2048 and 1024 respectively.