I was having huge problems on my new installation getting the sunsynk WiFi logger to connect - It kept saying Connection Status: DNS Lookup Failure.

The vendor was very keen to blame my WiFi.

SunSynk today said they have a fix...

connect your phone wifi to EAP-xxxxx

Input the address
10.10.10.1/serverset.cgi?addr=ukiot.sunsynk.net:51100
into the address bar of the browser.

You should get a response
{

         "status":      "ok"
}
power cycle the dongle (unplug it for 10s)

For me it was an instant solution.

(this might be just for region 2 - Using UK servers, rather than ?China? )

Try it at your own risk, not my fault if your house blows up, or anything else happens

Thank you for the post. I  replaced my home network, and experienced the same issue after. Instant fix, without needing to power cycle. Instantly connected to the new network.

Mush appreciated.