I reproduced the problem 
When everything is connected and working correctly, reboot your router.
iHost will make a sound and the led will turn red, indicating it lost the connection.
When the router is back online, iHost will make a sound indicating it has the connection again.
I confirmed the internet is working, acessing any website on my laptop browser and also turning on the wi-fi smart light switch directly on iHost (this smart light switch is linked to iHost by the eWelink Smart Home dock.
My router is back online since 8.04 PM (3.04 AM your local time).
Now is 8.30 PM and I can still see iHost in loop acessing ntp servers every 5 seconds.
Therefore, in summary:
When the router reboot, iHost enter in an infinite loop acessing the ntp servers;
To fix this, I need to reboot the iHost (Note: the coolkit.cc domains are always in loop even after rebooting iHost, probably due to the geolocalization as pointed out by Morgan).
I’ll send a private message with the logs.
Please see the logs between 8.03 PM and 8.30 PM.