I have two Windows 8.1 pro computers on the same network using the same FIOS router. On the first computer, I can telnet to localhost 3389. On the second computer, I can't telnet to the first's IP address or host name port 3389.

I disabled Windows firewall on the first. Temporarily disabled AVG. Exited spybot resident.

I made sure that windows firewall allows RDC through it.

What else can be blocking the remote desktop connection?

I also tried ports 81 and 8082. They have IIS websites running on them. I can't telnet to either.

What else can be blocking these ports?

  • 1
    Sounds like the FIOS router is not allowing connections to go through to port 3389. Check this set of instructions to see what you can do. idoneitmyself.com/2012/01/15/… – Giacomo1968 Oct 14 '14 at 2:28
  • Are these on wired or wireless computers? Are they both on the same side of the router? (i.e.: Both on LAN side?) If one or both are wireless, check your router for a feature called something like "Wireless Client Isolation". You might also want to try PowerShell as an alternative for testing the ports. Test-NetConnection -Port 3389. This does both a ping and TCP connect test. – Iszi Oct 15 '14 at 7:17
  • Both are wireless and I used to be able to rdc between them. Will take a look at the link – Hoppe Oct 16 '14 at 1:32
  • They were on the same router. I put my own router between the FIOS router and my own. Connected both devices to the new router wirelessly. Same issue. i think its time to uninstall AVG to see if it makes a difference – Hoppe Nov 4 '14 at 20:36

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