Windows Server 2008 R2 RDP Issue

Remote Desktop Protocol
Windows Server 2008 error messages
Windows Server 2008 R2
I am unable to RDP to one of my 2008 R2 servers. Firewall is off, port 3389 is listening, no AV is installed, RDP enabled allowing all computers to connect normally without SL level authentication etc...I have one in a VM and another standalone with the same behavior. No suggested resolution found out there has worked for me so fix, patches and deleting x509 certificate, certificate etc in registry yielded negative results...please help!!

Software/Hardware used:
2008 Server R2

Answer Wiki

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Can you ping the server from the machine you are trying to connect from?

Are the servers registered in DNS?

Is their network configured correctly?


1) Confirm the firewall is disabled on all profiles (as a test) since it may detect the local network as “public” which would make it enabled as an example.

2) Can you connect via IP instead of hostname? If so, then it would be a DNS resolution issue.

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  • Cisconovicenlv
    I like hunch number 1! As I am unable to connect via IP or FQDN however I can ping the servers fine via FQDN or IP from the machine/s I am trying to connect from. Could you please be so kind to guide me with some specific instructions on how to verify/confirm the firewall is disabled on all profiles? Thank you so much in advance.
    30 pointsBadges:
  • Dwiebesick
    from elevated command prompt netsh advfirewall set allprofiles state off this will set the firewall for all profiles to off You can verify/configure using Administrator Tools Windows Firewall with Advanced Security then check Domain, Private and Public Profile you can modify the Remote Desktop rule and under scope change the Remote IP address to any IP address (meaning to allow access from any IP, not that I am saying put any old IP address in this block) By default, this server will allow RDP from systems on the local LAN but block any from ‘foreign’ IP range.
    2,235 pointsBadges:

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