Internet keeps disconnecting

[Dan7256]

My internet keeps disconnecting roughly every 10-15 minutes at its worst. I have run rhe checker however this doesnt work when the internet is down. This means i can only run it when the internet is up and running and it therefore doesnt detect any issues. I have tried turning the router off and then reconnecting however this doesnt solve the issue either. The number of devices connected is the same as normal too. I am now stuck for what the issue may be. If anyone can help it would be greatly appreciated.

[Highlinder]

@Dan7256  It does work when the internet is down, this can be ran through the Sky app or using the link below.

.
https://www.sky.com/help/diagnostics/sky-broadband-diagnostic/sky-broadband-diagnostic

If the checker comes back green okay, click on the broadband button to run an updated broadband test.