@Rick68 Changing main Deco unit sometimes can cause a loss of features - details.

@meshuggener75 When you enable the guest network on Deco X20 it's isolated from your main wireless network - details.

@xhang By default all ports on the router are blocked for incomming traffic from the internet. In order to allow such traffic you have to specifically open a port or a port range by configuring...

@mrwassen Try configuring a virtual server on ER605 and test if that works for you:

@FANGS Follow the steps from this gude to configure RE650 in AP mode.

@iamSahed There's a few FW releases on the Indian support portal - here and the Mexican support portal - here. Hope that helps.