I will admit to being technically challenged but after hours of trying I managed to get my addons loaded but they didn’t work so I unistalled Kodi 17.3 then rebooted and and re-nstalled and now Kodi 17.3 says there is no internet when there is. I have a Dell; PC using W10 and use a wifi connection.
Cheers
Clive
PS Kodi is on my safe list on the Firewall