@Kevin_Z The software version is V1_1.1.1 but I also uploaded the previous V1_1.1.0 and the exact same thing happened. I also wanted to check V1_1.0.3 but there is no possibility to upload below...

@Kevin_Z Yes, I had a router for over 2 years before and never even restarted it. After replacing it with BE230 after about 3 hours I got an email saying that my synology drive had no internet...

@Kevin_Z I have now changed the router to another one and all other devices and cables remained and the problem disappeared. So it is not the fault of the internet provider or cables. Especially...

Unfortunately, disabling this function did not solve the problem. Now it does not cut off devices' access to the Internet several times a day, but every 3-4 days. I am really fed up with it.

@Kevin_Z I turned off "Airtime Fairness" and so far it hasn't interrupted the device's internet access since then. So I bet it's this feature's fault.

@Kevin_Z This is not the fault of the internet provider, because when I watch TV the image freezes but on the phone and other devices it works fine. Another time it stops working on the phone and...