@AlexFigueiredo If you aren't using your internet connections DHCP, then you'll need another DHCP server, probably running on the NAS, to assign IP's to the NAS interface and your Mac mini. Honestly...

@gunnzolder Does it work if you just turn off Windows Defender and Firewall temporarily? Have you factory reset the AP?

@d0ugmac1 Ok, firewall it is, I just tried from a fresh Mac and terminal establishment went fine. That said, why is the terminal session established direct between the enduser device and the network...

@chrisfromthelc :) I'd intended that message for the iPad poster... Glad to hear you've narrowed it down to a hardware device+firmware combo. I'm guessing TPlink will want to know the serial number...

@doremifajb Those two commands are the way I updated my Armbian OS, done as root, hence the # prompt. Should be very similar for Raspian.

I think we need to understand how many files and folders are recursively located in the directory he's trying to list. We also need to know if the application he's using is trying to build thumbnails...