Cisco Cisco TelePresence Video Communication Server Expressway
Client HTTPS requests are dropped by VCS
This can be caused by the automated intrusion protection feature on the VCS Expressway if it detects
repeated invalid attempts (404 errors) from a client IP address to access resources through the HTTP proxy.
repeated invalid attempts (404 errors) from a client IP address to access resources through the HTTP proxy.
To prevent the client address from being blocked, ensure that the HTTP proxy resource access failure
category (
category (
System > Protection > Automated detection > Configuration
) is disabled.
Unable to configure IM&P servers for remote access
'Failed: <address> is not a IM and Presence Server'
This error can occur when trying to configure the IM&P servers used for remote access (via
Configuration >
Unified Communications > IM and Presence servers
).
It is due to missing CA certificates on the IM&P servers and applies to systems running 9.1.1. More
information and the recommended solution is described in
information and the recommended solution is described in
Unified Communications Mobile and Remote Access via Cisco VCS Deployment Guide (X8.5.3)
Page 52 of 54
Appendix 1: Troubleshooting