Can’t connect to a specific Wi-Fi

iPhone
When WhatsApp reports that you’re unable to connect over a specific Wi-Fi connection, it’s possible that you’re on a captive Wi-Fi network.
Captive Wi-Fi hotspots often require you to log in before being able to connect to the internet. If you’re on a captive Wi-Fi, you have two choices:
  1. Disconnect from the Wi-Fi network and use your mobile internet connection.
  2. Log in to the Wi-Fi network.
Note: WhatsApp doesn’t support proxy connections.
Related resources:
Does this answer your question?
Yes
No