My device appears offline sometimes or always. How can I get to show up as online?
You can have a look at the
Help & feedback option on the
Profile pane at the eWeLink app. Also this support document might be useful: https://help.ewelink.cc/hc/en-us/articles/360005116271-Device-offline
In addition to this: When you set new DNS-servers in your router settings and life outside China I would recommend to try the Google DNS servers:
18.104.22.168. Or any other DNS servers that are better then the ones of your Internet Service Provider ofcourse.