tp-link DDNS configuration
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Hi!
I am writing to you with a bit weird case, I need to ping my router from other networks to know whether it is on or off
For this, I`m trying to configure DDNS address with tp-link service provider because I`m using dynamic ip connection type.
While connected to the router wi-fi I can use ping with ddns name, but it doesn't work from other networks (I use 2ip. me/en/services/ip-service/ping-traceroute for test)
Please be aware I`m newbie with routers and network 
Thank you, best regards!
1) Make sure that your Internet IP address is public, i.e. not in the ranges:
10.0.0.0 – 10.255.255.255
172.16.0.0 – 172.31.255.255
192.168.0.0 – 192.168.255.255
100.64.0.0 – 100.127.255.255
2) Make sure that you've enabled ping packets through the router's firewall on WAN port:
3) Make sure that the DDNS address you've registered resolves to the Internet IP address from the 1-st step.
If all these conditions are met and you still can't ping your DDNS address then probably the reason is that your ISP restricts echo requests or the website you're trying to ping from has issues.