3 posts tagged with "Troubleshooting"

1. Introduction​

Have you ever tried connecting to public WiFi at a café or hotel, only to find that the authentication screen (captive portal) takes forever to appear, or doesn't show up at all?

I frequently struggled with this issue while working remotely, feeling the stress of "not being able to start work because I can't connect to the internet." However, after some investigation, I discovered that past WiFi connection history accumulated on the device was the culprit.

Based on my personal experience, this article explains how to organize and delete unnecessary WiFi history on both Mac and iPhone. This simple maintenance can improve the speed at which the login screen appears and ensure smooth connections to public WiFi.

More Mac articles: Enabling key repeat · Fixing custom wallpaper issues · Reclaiming 109GB of disk space

0. [Resolved] Outcome and Final Conclusion (Updated December 2025)​

Regarding this issue, I have finally successfully logged in and resolved the problem. I would like to share the conclusion with those who visited this article facing similar circumstances.

Results of Support Consultation and Investigation​

Initially, I requested an investigation through Billing Support to a specialized team. However, it took considerable time to coordinate the scope of responsibility between departments (Billing Team ⇄ Technical Team). Ultimately, I was informed that the "Technical Team could not investigate as it was outside their scope," and the case was closed with a suggestion to use the official community forums.

The 7-Day Waiting Period​

However, immediately after the support interaction ended—approximately 7 days after the error first occurred—the situation improved after I refrained from any operations. The 2-Step Verification (2SV) process, which had previously blocked me with the "We couldn't verify it's you" error, successfully went through. I was then able to configure my security settings and log in to Google Cloud.

Based on the login history, the presumed factor for resolution is: "By refraining from login attempts for a certain period, the system's security lock was automatically lifted."

1. Overview​

This article provides a step-by-step solution for an issue on MacBooks where custom image files set as wallpaper (Desktop Picture) through System Settings are not applied correctly or are reset after a restart. After struggling with this minor but persistent issue for years, I finally found a solution and wanted to share it.

More Mac articles: Enabling key repeat · Reclaiming 109GB of disk space · Fixing public Wi-Fi captive portals