WiFi / internet dropping and coming back intermittently

[AndrewBrunts]

Since yesterday evening my wifi just keeps disconnecting and then after maybe 20 minutes coming back again for maybe another 20 mins to an hour or so. I have tried resetting, checked all cables etc. it makes no difference and everything appears fine. It has dropped again this morning whilst I'm trying to work from home.  Very poor. 

[AndrewBrunts]

Forgot to mention above, the "voice" light on the router is amber. 

[Highlinder]

@AndrewBrunts Can you please run the broadband test, this can be done either via the Sky app on mobile data or use the link below.
https://www.sky.com/help/diagnostics/sky-broadband-diagnostic/sky-broadband-diagnostic

If it finds an external fault it should enable you to book an engineer.