Courtesy of the Tekto forum.
A lot of people experience problems accessing kodi addons, often after installing builds but this can also apply to manual installations. This is a comprehensive guide on how to overcome some of these problems.
http://www.tekto-kodi.com/kodi-technical/remove-isp-blocking/
Note, if you can access some addons but not others then "soft" blocking by ISPs is unlikely to be the cause. For comparison, "hard" blocking is where a specific addon URL is blocked.
It is also possible that some ISPs can reset these controls without your knowledge so it is always worth checking before posting.
A lot of people experience problems accessing kodi addons, often after installing builds but this can also apply to manual installations. This is a comprehensive guide on how to overcome some of these problems.
http://www.tekto-kodi.com/kodi-technical/remove-isp-blocking/
Note, if you can access some addons but not others then "soft" blocking by ISPs is unlikely to be the cause. For comparison, "hard" blocking is where a specific addon URL is blocked.
It is also possible that some ISPs can reset these controls without your knowledge so it is always worth checking before posting.