How to disable the Firewall from blocking the IPTV, supplied by the Internet provider over the local network?

How to disable the Firewall from blocking the IPTV, supplied by the Internet provider over the local network?
Adding the program name ( IPTVplayer.exe supplied by Internet provider for that purpose) to the list of accepted programs does not work. The TV stream remains blocked. So the only way to see the IPTV is to switch off the firewall completely. I suppose it is somehow connected with UDP-blocking.
Really, if you look into the Firewall Journal, you can see that  the process ''C:\windows\system32\svhost.exe''   is permanently blocked by the Firewall! 
But how to disable that blocking?  I couldn't find the way.
What should I do?

Oleg, Also have a look @ this article (https://support.avg.com/SupportArticleView?urlname=How-to-allow-or-block-all-connection-to-specific-IP-address).
AVG Guru

Oleg, Also have a look @ this article (https://support.avg.com/SupportArticleView?urlname=How-to-allow-or-block-all-connection-to-specific-IP-address).
AVG Guru