Confirm the traffic between NXC and external captive portal web
server is passing.
Use NXC ping to the external captive portal web server.
Make sure the URL of Web pages are correct or not if it is external web
portal.
Figure 149 CONFIGURATION > Captive Portal > Captive Portal > External
Web Portal
5 Check the network
Make sure the WAN connection of NXC is working and can resolve URL of
destination which means to have valid DNS.
NXC can ping gateway IP address successfully via console:
Figure 150 Tera Term > NXC > Router > ping <Gateway IP>