Well fingers crossed this is sorted I all I can say is if what I had to do did sort out the problem there is a serious flaw with Oreo 8..what I did was log into my sky router and I had to disable ipv6 Lan I've watch a few hours in Kodi and no freezing as yet ..this also fixed not losing network connection and smooth navigation around the screen..a major flaw on Sony's part and I shall be sending my findings to Sony complaints