Remote setting:
Right click "Computer" ->Properties ->Remote setting(See picture below)
Windows Firewall settings:
1. Turn off Windows Firewall(But not recommended).
2. Make sure "Turn on Windows Firewall", then,
Start ->Control panel ->Windows Firewall ->Allow a program or feature through Windows Firewall ->Remote Desktop
Other useful setting:
(check whether can ping this computer)
1.Remote Desktop Service
Start ->Control panel ->Windows Firewall ->Services and Applications -> Services ->Remote Desktop Services ->start it.
2.adjust win7 firewall setting
Start ->Control panel ->Windows Firewall ->Advanced Settings ->Inbound Rules ->File and Printer Sharing(Echo request - ICMPv4-In)[maybe two] ->Right box choose "Enable Rule"
(All above is ok, but still not connect)
Start ->Control panel ->Windows Firewall ->Advanced Settings ->Inbound Rules ->Remote Desktop(TCP-In) ->Right box choose "Enable Rule"