@BLABLA03 try FileZilla Ftp client, what it says?

@tapac3 offtop: i remember only one situation when c64 become hot when ive copied 900gigs of data over wifi at full speed 60-70megabytes and at ~90% c64 disabled wifi 5ghz, it was GONE until i reboot...

@tapac3 i can confirm this on every c64 router firmware, except that beta i gave you: https://community.tp-link.com/en/home/forum/topic/677084

@Defaultuser9 are you sure that rdp access work if you in local network? disabled firewall on windows including the antivirus firewall does not mean that it is not working ;) maybe go to inbound and...

@BLABLA03 check Security - FTP ALG Enabled.

If you use microsoft rdp client it wont connect rdp in udp tunnel. how it is for me try openvpn tcp