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[FAQ] Since upgrading to UCS 5.1.1 and running LYNC unable to access the Web Interface

Polycom Employee & Community Manager

[FAQ] Since upgrading to UCS 5.1.1 and running LYNC unable to access the Web Interface

UCS 5.1.1 introduced new features and functionality and as part of this the Web interface is no longer active when the phone is in LYNC base profile mode.


UC Software 5.5.0 or later disabled the functionality to have either HTTP alone or HTTP and HTTPS in combination and enforces the phone to utilize HTTPS only. 

The Persistent Single Sign-On / PSSO policy does not allow unsecure HTTP and the httpd.cfg.secureTunnelEnabled="0" Parameter is therefore invalid


NOTE: Before activating this feature please ensure you change to factory default password as shown => here <=


Option 1:


In order to enable the HTTP or HTTPS Web Interface on the phone please go ahead as follows:


  • Press Menu Key

  • Select Settings

  • Select Advanced

  • Add the 456 or the changed Password


  • Administration Settings


  • Web Server Configuration


  • The next menu will allow you to either only enable HTTP, or only HTTPS or both



  •  or to disable this again


Option 2:


Simply provision the feature from the provisioning server:





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