@Yasmin28 this is a fairly common issue you can in practice safely ignore the warning on a home network as only your families devices which are trustworthy are connected to your hub as the warning refers to the ability of devices to track your phone. However it is likely if you go into the settings for the Sky network connection and change the Private WiFi Address setting from off to fixed or rotating the warning will disapear.
The connection issue with your Ring doorbell is separate and something we get posts about quite frequently. Ring doorbells use the 2.4GHz band which only has room for 3 or at most 4 signals without interference. Where a unit has stopped working like your's the cause can be interference from a neighbour's wifi using the same or adjacent wifi channel.rebooting your hub may help as that causes the hub to use the least congested channel however in some areas you may need to be more scientific but try the reboot first.
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65inch Sky Glass, 3 Sky Streaming Pucks, Sky Ultrafast + and Sky SR213(white Wifi Max hub) main Wifi from 3 TP-Link Deco M4 units in access point mode
