mirrors.kodi.tv blocked

Hi,
In the last month or so I saw that I cant install any addon from kodi official repository.
I started to investigate it and I saw that ‘mirrors.kodi.tv’ is un-reachable from my PC.
I checked this address via my phone and it seems fine.

I found a workaround on my PC by going to Kodi installation folder, to file C:\Program Files (x86)\Kodi\addons\repository.xbmc.org\addon.xml.
I changed the ‘extension’ node to be: ‘ftp://ftp.halifax.rwth-aachen.de/xbmc/addons/…..’.
This fixed the issue in My PC.
I still have the same issue in my Tv-Box (android), mainly because I dont find ‘repository.xbmc.org’ folder with addon.xml inside.

1. Can you please help me locate the folder on my android tv box ?
2. I called my ISP (HotNet from Israel) and they told me that Kodi blocked them. Is it correct ? If yes, what should I do ? Is there a work around? Can you unlock them ?

Currently, on my Tv-box I cant install addons from Kodi official library.

Please help,
Thanks.