ios is updated. Version 11.4 I use only one deco in my system I send an email to tp-link support and I'm waiting for reply

Model : Hardware Version : Firmware Version : ISP : Hi all, I Have TP-Link N300 VDSL modem and Deco M5 wireless extender. Deco is connected to modem with Ethernet cable. Deco's firware is updated and...