Just tried "Check network status" and got message "www.three.co.uk refused to connect", LOL.

[fuzzy]

Just did that, from my dashboard, at 8 am on a Sunday! 

[MSF]

The Network Status checker isn't working for me today either - just a blank white square on the webpage.

This happened the other day too and Smarty acknowledged a glitch in the system. It appears that they haven't managed to fix it yet.