No network connection at 2am

[ginie847]

No network connection

[lettice]

Often, when internet goes off in the early hours it's overnight maintenance being performed by Sky.

Firstly, see what it shows from the following;

To check there are no current outages in your area;
https://www.sky.com/servicechecker

Next, if not, would be worth try running a line test;
https://www.sky.com/help/articles/broadband-diagnostic-start