@JamesBbeck82 try turning your Sky box off at the plug and check that the satellite dish connections at the back are still securely fitted. After at least 5 minutes restart your Sky box and see if the problem is resolved.
If not, the cause is most likely a fault with your dish or cables. Unfortunately Sky no longer provide engineer support for Sky+ equipment unless you have Sky Protect, so you'll need to contact a local satellite engineer to take a look.
Alternatively now might be a good time to consider upgrading to Sky Q. Any dish or cabling issues will be addressed as part of the Sky Q installation at no additional cost to you.
