You too!

Hi @Joseph-TP, thanks for your reply. In the meantime I verified Ethernet cables and network components and came to know that the problem was due the D-Link switch. After replacing it by the TP-Link...

@Sunshine, How to confirm whether Ethernet Backhaul is working or not? I have successfuly configured Ethernet Backhaul beetween two C6 v4.0 router, but in Connection column I still see a WiFi icon...