Hello Moe,
welcome to the Polycom Community.
The community's VoIP FAQ contains this post here:
Jul 11, 2014 Question: Since upgrading to UCS 5.1.1 or later and running LYNC base profile I can no longer access the Web Interface
Resolution: Please check => here <=
Maybe you simply purchased the VVX201 in Skype for Business mode or LYNC and therefore the Web Interface is turned off as a standard. SImply enable it and it should work.
Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.
Best Regards
Steffen Baier
Polycom Global Services