You are welcome; glad to help you. If need more help in the future, do not hesitate to contact us. Best regards.

@CaboInterneTV The Deco M5 can connect to each other by wired cable or wireless, to make it work, we need connect one of them ( the main one) to the internet source/modem, but it does not support WDS...

@Philippe1981 Hello, we will do some troubleshooting to locate the issue first, then we can try to fix it. 1. What is the internet led status of the Archer C5400 when it lost connection? With your...

@CaboInterneTV The Deco units can connect to each other by wired cable or wireless to builb up a mesh wifi system; While the first Deco, the main one need connect to the internet source/modem...

Thanks for your valued reply, glad to hear that you got it fixed. Congrats. Now you can enjoy the internet with the TP-Link device. Any further problem, please let us know. Best regards.

@jcoutie Hello, so the current network diagram is like modem--router-Deco x 2( AP mode) ---/)))((( desktop/laptop? FYI, the Deco M5 does not support QoS in AP mode; When the long connection issue...