book
Article ID: CTX559695
calendar_today
Updated On:
Description
Shadowing users failing with error "Remote assistance cannot make the connection".
Resolution
Open ports 135 and 3389 in both directions.
Problem Cause
Communication ports closed.
Issue/Introduction
Shadowing users ports closed
Additional Information
Citrix Director and Admin Workstation. Communication between Citrix Director and Virtual Delivery Agent for Remote Assistance. TCP Ports 135,3389
https://docs.citrix.com/en-us/tech-zone/build/tech-papers/citrix-communication-ports.html