"Access denied" from WinVNC on connect

Currently I am trying to create some code using TigerVNC to work with Sikuli to do userbot testing on a bunch of different headless vm's. The code works when connecting via local machine but catches an exception of "End of Stream" When trying to connect to a remote Tiger VNC server. So I started testing with just the VNC viewer and I get the same error when just trying to use the viewer via command line. I have enabled logging and I will post the logging below. I also tried updating to the latest nightly.

This is from one headless vm to another headless vm which I remote desktop into, both Windows Server 2012. Both have the latest nightly download installed.

LOG:

Thu Apr 23 18:34:03 2020
 DecodeManager: Detected 4 CPU core(s)
 DecodeManager: Creating 4 decoder thread(s)
 TcpSocket:   Connecting to ***** port 5900
 CConn:       Connected to host ***** port 5900
 CConnection: reading protocol version
 CConnection: Server supports RFB protocol version 3.8
 CConnection: Using RFB protocol version 3.8
 CConnection: processing security types message
 CConnection: Server offers security type VeNCrypt(19)
 CConnection: Server offers security type VeNCrypt(19)
 CConnection: Server offers security type VncAuth(2)
 CConnection: Choosing security type VeNCrypt(19)
 CConnection: processing security message
 CConnection: processing security message
 CConnection: processing security message
 CConnection: processing security message
 CConnection: processing security message
 CVeNCrypt:   Server offers security type TLSVnc (258)
 CConnection: processing security message
 CVeNCrypt:   Server offers security type VncAuth (2)
 CVeNCrypt:   Choosing security type TLSVnc (258)
 CConnection: processing security message
 TLS:         Anonymous session has been set
 CConnection: processing security message
 CConnection: processing security message
 TLS:         TLS handshake completed with
              (TLS1.2)-(ANON-ECDH)-(AES-256-CBC)-(SHA1)

Thu Apr 23 18:34:04 2020
 CConnection: processing security result message
 CConnection: processing security result message
 CConn:       End of stream

Any help would be awesome, thanks!

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