The DDNS domain printed on the back label of router has changed. If your DDNS
url is xxxxxxx.gl-inet.com on the back of router, new DDNS url will be
xxxxxxx.glddns.com.
8.3.3. Check if DDNS is enabled
Use nslookup command to check if your DDNS is enabled. Make sure you use
your DDNS url when use nslookup command.
nslookup xx5007c.glddns.com 8.8.8.8
8.3.4. HTTP Remote Access