Solved] DDNS configuration with NO-IP .UPC Connect Box with TP-LINK TD-W8970 router
Solution] ARC setup in the Czech Republic (CORE NAS Synology X Router Synology x Router ISP Vodafone (UPC) - ARC: Port Forwarding Resources - Roon Labs Community
Mikrotik Router (RB951UI2HND) for sale online | eBay