I'm loosing constantly Wi-Fi connection since I installed OS X 10.8.2 (Mountain Lion). Never had this issue before, any idea how to fix this?
iMac, OS X Mountain Lion (10.8.2)
Try using an app like iStumbler to check for interference. Also try changing your WiFi channel on your router.
Thanks will certainly try this. Location of the imac has not changed though, only difference is the OS
Even if upgrading the operating system is the only change you made, there might have been coincident changes to the environment. For example, one of your neighbors might have changed his wifi settings to conflict or bought a defective new microwave or similar device.
Had the same problem (random WiFi disconnects), but AppleCare solved it.
Delete Macintosh HD/Library/Preferences/SystemConfiguration.
You'll have to reconnect WiFi, but pswd etc should still be there.
Wi-Fi connection issues with OS X 10.8.2 (Mountain Lion)
