Hi, Please try to change the DNS server of the main router to 8.8.8.8/8.8.4.4 to give it a go. If still the same, please provide us the information below to do further analysis(You can send private...

Hi. Could you please show us a screenshot of the notification you saw and the mac address on the antivirus history page?

Hi, The Deco M9 plus supports ethernet backhaul and wifi backhaul, besides, there is a 5GHz-2 existed to work for wifi backhaul only. You can refer to the thread below:...

Hi, Sorry to tell you that there is no option to isolate the 2.4GHz and 5GHz, or change the channel manually via the Deco app yet. While there is a plan to add in the next firmware. And there is no...

Hi, Because the SSL protocol is old/out of date so that it is quarantined when the specific device access the Deco M9. You can get this device via its MAC address showing in the antivirus history...

Hi Bassin, Thanks for your feedback. May I know what is the serial number? And when and where did you buy this C3150? Thanks in advance, and have a nice day.