@peter_H.-123 

Hi, have you checked whether VR400 has a public IP address? or whether this IP is the same as IP tested by https://whatismyip.com/?

Are you able to log into the web UI of VR400 remotely if the remote management is enabled?

@TP-Link 

Hi,

The VR400 iis on my ISP's public address 70.xx.xx.xx which I can scan using various internet Apps.

My old ISP (Virginmedia Fibre) used a dynamic IP and I used Duckdns.org to monitor and make changes as necessary. I have not changed from this domain even though I am now on a static IP but just pointed Duck to my new IP address, If i check the Domain name it now gives my new static IP address.

I cannot find any router web page that refers to "Remote Menagement" to enable it!

I can log into my VR400 OK from any connected lan address and have bound the local mac address to 192.168.1.100,  if I enter this into my laptop browser I can see a default Nginx webpage.

 The H/W isArcher VR400 v1 00000000  F/W 0.1.0 0.9.1 v0070.0 Build 160613 Rel.4040n and my F/W seems to be the latest!

I hope something above is wrong or I can establish if the router is faulty so I can get my server running again,  ATM I am lost for Ideas!

Thanks.