RDP to SBS 2011 server plus other ports

I have a Windows SBS 2011 that I can not remote to using RDP.  At one time I could.  I have the port 3389 as the port on the server.  I have turned off windows firewalls and no change.  The router has the service in there and it is mapped to the server's internal IP address.   I have issues with a camera system also on the network, that I cannot access outside of the network.   If I go to canyouseeme.org and put in 3389 it says it can not see it.  I have another server on the network that I can remotely access with a different port.  It pretty much is a no brainer, but for the life of me, I can't determine what it is.   I have researched and tried many different things to fix it.   Could there be a separate router on the network?  It is a large building.   But I have no issues with just general networking.  If an additional router were on the network, I would think that things would be unstable.   Help!
Kevin CaldwellOwner of RUseeingRed Tech SolutionsAsked:
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Can you remote to the SBS server from a computer on the same network?

Verify it's port (I think it's in the key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TerminalServer\WinStations\RDP-Tcp\PortNumber)  and services are running.

If you can  connect from a pc on the network, then your problem is your gateway/firewall.  And keep in mind doing that - opening a port in a gateway/firewall for RDP is unwise from a security standpoint.  Use Remote Web Workplace/Access or setup a VPN.

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Kevin CaldwellOwner of RUseeingRed Tech SolutionsAuthor Commented:
Let me check on those settings.  Thank you.
Kevin CaldwellOwner of RUseeingRed Tech SolutionsAuthor Commented:
The router was the issue and was replaced.
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