@Packet All depends on what software test you are using to check! Could be anything, hub, cable, home wiring, external wiring, interference from surrounding wireless hubs!
Service checker may be able to indicate if area wide fault is detected by now that sky are aware off!
If you haven’t done it already use the below link to check to see if there are any broadband problems or outages nearby
https://www.sky.com/servicechecker
