I 2nd expatter's first post re: custom builds.
Especially on an Android STB.
For IPTV streaming, you need all the memory resources available.
Custom Kodi builds usually have a ton of never-used addons enabled, and if they are enabled, they will have a startup sequence when Kodi starts up, that will reserve memory allocation space for itself. This will reduce memory area needed for video processing, audio decoding and general space for kodi and stalker functioning as well as slow down kodi's responsiveness.
Custom builds may also have critical component left out of the compilation, such as various PVR's etc.
Why give yourself extra headaches?
Also, you may not get very good help from the Forums, since most of us know custom builds may be causing the problem to begin with, and it is very frustrating to debug a system if you dont have history.
Disable or uninstall any addons you dont or rarely use. enable them if you need them.
If Dara did not rectify your problem, start over but follow the kodi17 Setup instructions in the Kodi tutorial thread.
Good luck
/kens
ps: I'm not preaching to you. Just killing time!