Can't access my Synology DiskStation via https://domainname.com:5001 from internal network
Can't access my Synology DiskStation via https://domainname.com:5001 (domainname.com is only an e.g.) from internal network.
From extern I'm able to connect to my Synology DiskStation via https://domainname.com:5001
Configuration:
TP-Link Deco M9 Plus:
Gateway:
192.168.1.1
DHCP-Range:
192.168.1.100 - 192.168.1.250
DNS-Servers:
1.1.1.1 (set manually in the App under DHCP Server
1.0.0.1 (set manually in the App under DHCP Server)
192.168.1.1
Adressreservation for Synology DiskStation:
192.168.1.101
Synology DiskStation:
External IP update via NoIP.com
Port forwarding made on Synology DiskStation via UPnP. But also if I configure the Port Forwarding inside the Deco App, I'm unable to connect.
Symptom:
Accessing from extern to my Synology DiskStation (or DiskStation related services) works fine. If I try to access my DiskStation from the internal network the webpage loads forever and fails.
Any suggestions?