eWeLink app falsely says phone not connected to WiFi

I have had problems with Sonoff switches and temperature sensors disconnecting from WiFi. When I try to reconnect using ‘add device’, the app tells me the phone is not connected to WiFi when it is. And yes, it is a 2.4GHz only WiFi network. GPS is enabled.

How do I get past this?

Hi there,
Thank you for bringing this issue to our attention. We apologize for any inconvenience you are experiencing with the issue. In order to assist you more effectively, we kindly request that you submit a support ticket via in-app “Help & Feedback” and provide us with a video of the issue. This will help us to better understand what’s happening and identify the root cause of the problem.

Gladly, but I will not be on site again until September.

can you just let us put in the data manually if your app can’t figure out it’s connected to wifi? I had this issue for half a year now and I’m barely next to the switch but everytime I am it’s pissing me off