I'm trying to help my mom remotely with some PC problems.
She's not too computer savvy, so to keep the firewall stuff on my side of things, I tried to use a reverse VNC connection:
- On my machine, I set up TightVNC client in listening mode. I also opened TCP port 5500 on my router and firewall, and checked it using http://canyouseeme.org/.
- On her machine, I (instructed her to) set up TightVNC server, and connect to my machine's IP ('Add New Client...').
Both machines run Windows XP & TightVNC 1.3.10.
When she tries to connect, a TightVNC window with grey background pops up on my machine, but I never get to see the remote desktop. It just remains grey.
However, it seems that I control the mouse on the remote side (she says it's moving).
I tried to reverse-connect from another machine on my LAN and it works without a problem.
Any idea what the problem could be?