@Grm1 do you havectge white Sky Max hub? If so some okder devices can have issues connecting to these new hubs so its worth switching ghe WiFi security from WPA3-T to WPA2 to see if that helps.Also try temporarily turning off the 5GHz wifinbsnd yo see if the devices connect then All settings are in the My Sky app section for the hub.
if its a very old PC consider buying a USB WiFi adapter which cost around a £10.
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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
