@CathalFerris I assume you're referring the Address Reservation limitation of 32 entries only. For the DNS setup - that's by TP-Link's design - refer this thread for more details. Here's the official...

@danielrosehill Refer this thread.

@CathalFerris Refer to this thread and see how to set Pi-Hole IP address as a DNS server for your LAN devices.

@CandyBass Have you tried to access the FTP server from an external network (not your LAN) ? Check how it behaves if you try the access from an Internet. Also make sure that you have enabled FTP ALG:...

@CandyBass Here's a full installatoin guide for VSFTPD - https://adamtheautomator<dot>com/vsftpd/ Go through this guide and double check your VSFTPD configuration. Port 20 TCP is the data port when...

@Scotty_P If disabling Wi-Fi 6 is perceived as selecting wireless mode excluding 802.11ax then you can select: