Error occured when adding real robot in Robot Neighborhood

Hi, an error occured when I was adding a real robot in Fanuc Robot Neighborhood: Run-time error '13', Type mismatch.

My OS is Windows 8 32bit, robotguide version is 8. And I connect the robot via my wireless router, the router and the robot controller are plugged in the same switch, IP address is 192.168.20.xxx.

Oh, and I have tried directly connect my PC to the robot controller, failed. Anybody can help?

Today I finally set up a Windows XP environment to test Robot Neighborhood -- it worked in XP.