Sky channels not working

[MG7266]

Some of my channels aren't playing saying no satellite signal but some are okay 

[GD1]

@MG7266  Have you followed the steps here?  https://www.sky.com/help/articles/sky-tv-no-satellite-signal-check-q

[Daniel0210]

@MG7266 
Whenever a “no satellite signal” message is displayed firstly check that the connections from the Sky dish going into the back of your Sky Q box are still finger tight. Also check out the troubleshooting on this link
https://www.sky.com/help/articles/sky-tv-no-satellite-signal-sky-q
It may then give you the opportunity to arrange an engineer to check the alignment of your dish.

It’s not necessarily something that will be visible to the naked eye and could only affect one or two channels. If you’re on a communal dish you may initially need to liaise with your landlord or building management company.