I don't see the region option. actually since implementation of CE or FCC, the powerline is either US or EU or other version, and region is fixed

did you ever reset the device Polter? maybe you check the log when it's working but that doesn't indicate anything. You can try login 192.168.0.1 from different computers to check the status and log...

I suggest update the firmware of D7 http://www.tp-link.com/faq-652.html

check your phone line. here is an instruction http://www.tp-link.com/faq-735.html.

fixed ip? you mean the WAN ip from sky? it's a strange problem. do you install the latest firmware? do you set up any schedule or restriction rule on the router? the log was taken when it quit?

I used chrome. you can also set up the camera with app, it's more convenient.