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RDP stopped working

I have RDP setup on my server. It is running Windows Server 2012 R2 Standard. RDP suddenly stopped working and I have no idea what is going on. I have checked for viruses, ensured ports are opened, disabled firewalls and tested. Its a pretty simple connection. I have my ISP modem w/firewall>Server. Port forwarding is all setup and was working. Any ideas? Thanks!!!
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it_saigeDeveloper
Distinguished Expert 2019

Commented:
Probably a silly question, but have you verified that the server ip has not changed?

-saige-
Spike99On-Site IT Technician

Commented:
What, if any errors, do you get when you try to connect to the server using RDP?
Are there any errors in the event log on either the server or the client PC at the time ?
Are the services for Remote Desktop Services running on the server?
What OS is the client PC?

Author

Commented:
Hi Saige, not a silly question. :) I have actually had that happen, even a static IP changing. That was a bigger issue though. I was able to confirm the IP is the same. I get the error saying the machine isn't on, the remote connection isn't setup, etc. Those 3 options. I don't see any errors in the event log. This is just a terminal server. Windows 7 Pro.
it_saigeDeveloper
Distinguished Expert 2019

Commented:
Have you verified whether you can RDP to the server internally?

-saige-

Author

Commented:
Yes. From a local machine I can log into the server. I might reset my firewall/router to manufacturer settings and see if that works.
it_saigeDeveloper
Distinguished Expert 2019

Commented:
Before you do that, what is the make/model of your router?

-saige-

Author

Commented:
It is the Cisco RV120W Wireless-N VPN Firewall
Developer
Distinguished Expert 2019
Commented:
Have you followed the steps outline here to ensure that your firewall is indeed forwarding 3389 to the correct IP address?

http://portforward.com/english/routers/port_forwarding/Cisco/RV-120W/Remote_Desktop.htm

Also this EE PAQ does mention where someone updated their firmware to resolve an RDP issue: http:/Q_27112937.html#a37556771

-saige-