The persistent prompting to authenticate on a Wi-Fi network, despite prior successful connections, is a recurring user experience on Android devices. This often manifests as a notification or pop-up persistently requesting a sign-in, even when the device is seemingly already connected to the network and actively using internet services. The cause is often related to the network using a captive portal, requiring agreement to terms of service via a web browser before full access is granted. A common example includes public Wi-Fi hotspots at coffee shops, airports, and hotels.
Addressing this behavior is important for ensuring a seamless user experience. The repeated requests can be disruptive, impacting productivity and causing frustration. Historically, these prompts were largely associated with open, unsecured Wi-Fi networks. Modern implementations, however, also trigger the behavior on networks employing security protocols, particularly those with captive portals needing acknowledgement or requiring periodic re-authentication. Resolving this issue enhances device usability and promotes a more stable connectivity experience.