@TPint Hi, I am afraid that we can not get this information from the router directly. Sorry that it is out of my knowledge to tell how to understand whether the router has a symmetric nat or not. As...

@I_need_Coffee19 Yes, you may contact local support directly or ask them to call you back if possible(if you worry about the phone fee).

@Vincentt Hi, I think so. Some products in this thread support Easymesh as controller when working as AP mode.

@Adjie Hi, thanks for posting question here. Usually, it is more suggested to plug the powerline units into wall sockets directly for normal and proper usage.

@I_need_Coffee19 Hi, thanks for posting question here. If having trouble setting up the DSL modem router, you read the guide to make sure your network topology and follow the steps in it. For your...

@TPint Hi, thanks for posting question here. After confirmation, your model does not support Symmetric NAT.