Hello, I found a solution, Port Profile, set speed limit. Is it not possible to solve it elegantly via Device Config? Here the restriction only works for wifi clients.

Hello, I tried set Rate Limit on my Synology NAS, but no success. Is something working properly on this device? Pavel

@mazzaris Hello, I have the same problem. I disabled Block "Ping of Death" and "Block Large Ping" in Packet Anomaly Defense, Network Security. It's not the right solution, but it will help.

@Fae Hello, my router is TL-R605

@Ser Hello, I was the same problem. When data retention is 7 days only, situation is better, but one notebook, when is no connect time more than 7 day is wrong name again. I set one month. So far...

@JhonneL Hello, try enable History Data Retention, Collect Clients' History Data. It helped me. Pavel