Stopped working yesterday so...
Upgraded Kodi to latest 15.2
Stalker client 0.8.4
IPTV Stalker not installed.
Read various topics and done following...
Mac address 00:1A:78:XX:XX:XX
Server..http://66.iptv66.tv
Serial number 13 digit/number
Device ID..5 digit/number
Device2..5 digit/number
Signature..5 digit/number
Cleared caches
Set new Mac
Enabled TV
Get immediate "Unable to load channels"
Retried above steps several times.
Anyone got any ideas on what to try next??