This article relates to Cisco TelePresence Management Suite.
Q. Feedback from my MXP endpoint to TMS is being blocked by the network or web server--what does this mean?
A. TMS relies on feedback sent from systems. Most TANDBERG and Polycom systems send this feedback using anonymous HTTP or HTTPS connections. This connection can be blocked if there is a web proxy on the network that requires authentication. In this case, you should speak to the administrator of the proxy about adding an exception for traffic destined for TMS.
Another common failure is firewalls blocking incoming requests to TMS. The TMS Product Support document outlines what ports and protocols must be available for each system type.
The last common failure is an administrator manually modifying the IIS configuration after TMS has been installed and disabling anonymous access to the web directories. Anonymous access is only open to certain portions of TMS and cannot be disabled because systems do not use usernames and passwords when they send feedback.
To correct any IIS misconfiguration, uninstall TMS and reinstall it. No customer data will be lost as long as the database is left intact, and the installer will rebuild the web site properties correctly.