@cadejane
Wifi is notoriously problematic in large properties, especially older ones with solid internal walls. A single router is often not sufficient to cover all rooms (not just Sky but most providers).
So, if you have weak/no wifi in some rooms here are some options that would help:
1. Obtain wifi boosters from Sky (but that may or may not cost you depending on what level of broadband service you are paying for). There are many posts on this forum about obtaining these if you search for "Booster".
2. Invest in further hardware and create your own wifi Mesh with sufficient devices to cover the whole house. There are multiple suppliers you can pick from that all work well, but this can be relatively costly but once invested, a Mesh system would work with any broadband supplier if you eventually move away from Sky.
3. Homeplugs can provide a hardwired solution from your Sky Broadband router to other rooms using your mains wiring, you simply need a power socket near the router and another in the "target" room that then allows devices to be hardwired (or connection of a wifi hotspot inthe target room).
Personally I went with option 2 using Amazon Eero mesh devices as some rooms in our bungalow were just too far away from the router to pick up a wifi signal reliably.
There are plenty of very knowledgeable people on here that can offer advice / help in much more detail depending on which solution you decide to go for.
