MyIPTV4K has the highest downtime among all the 3 you suggested. Maybe it's due to their sources which are mainly from local satellite TV "A".

Our local authorities very kuat raiding frequently and telco infra not as advanced as other countries. The operations not as big and influential as their China/Taiwan counterparts. Expensive also because their viewership market not as big.

Thus the reason why local pirate IPTV cannot stand a chance against big time players.

MYIPTV4k has downtime almost every month due to their smaller operations in the country, some of their broadcasters are doing it form the home using Time Home Fibre as backend .

You can read some of the forumers complaining here.