ATEM SDI EXTREME ISO ON AIR blinking only ON SUNDAYS

Hello everyone,
we have the ATEM SDI EXTREME ISO switcher in my church to stream live on youtube and it has been working fine until the last week of September.
The ON AIR button just blinks the whole time and therefore there is no connection to youtube.
The strange thing is, this only happens on sundays. From Monday to Saturday, there is nothing wrong with the connection with youtube. We press the button ON AIR and it stays on and the connection with youtube is succesful. But we come on sunday and it doesnt work.
The Atem Switcher is connected over IP Addreess to the ATEM Software Control Panel.
Youtube Stream Key is correct and a new one also has been generated multiple times.
Our internet on sunday is not different from the internet during the week.
Does anyone have an idea what the issue might be?
Let me know if you need some more information.
Thanks
we have the ATEM SDI EXTREME ISO switcher in my church to stream live on youtube and it has been working fine until the last week of September.
The ON AIR button just blinks the whole time and therefore there is no connection to youtube.
The strange thing is, this only happens on sundays. From Monday to Saturday, there is nothing wrong with the connection with youtube. We press the button ON AIR and it stays on and the connection with youtube is succesful. But we come on sunday and it doesnt work.
The Atem Switcher is connected over IP Addreess to the ATEM Software Control Panel.
Youtube Stream Key is correct and a new one also has been generated multiple times.
Our internet on sunday is not different from the internet during the week.
Does anyone have an idea what the issue might be?
Let me know if you need some more information.
Thanks