Why is my IP geolocation tool suddenly failing for users?

Background & Problem: my "What is My Location?" web tool, which relies heavily on IP geolocation, was working perfectly for months. honestly, it was one of my most stable services. but suddenly, over the last few days, users are reporting it's completely broken. it's either showing wildly inaccurate locations (like a completely different country, sometimes even a different continent!) or just failing to find any location at all ("unknown"). i'm getting so many support emails, it's driving me absolutely crazy. i feel like i'm drowning in complaints and i just can't figure it out.

What I've Tried So Far (and Failed):

• i checked client-side browser permissions for location access – confirmed allowed in most cases, or at least they say they are.
• verified my API keys for the geolocation service (currently using a mix of browser's native Geolocation API and a fallback to a third-party IP-based service). keys are valid, not expired, and i even tried regenerating one just in case.
• scoured server logs for any obvious errors or rate limit issues with the third-party API. nothing jumping out, but it's hard to tell if it's something subtle i'm missing in the noise.
• tested it myself on multiple devices (mobile, desktop), different browsers (Chrome, Firefox, Safari) and networks (home Wi-Fi, mobile data). sometimes it works fine, sometimes it doesn't, which is the most frustrating part. it's so inconsistent!
• thought maybe it's ISP or VPN interference, but it's happening to users without VPNs too, and across different ISPs.

Specific Symptoms/Errors:

• browser console often shows Position acquisition timed out.
• occasionally, i see Geolocation API error: User denied Geolocation even when they've clearly allowed it in their browser settings. it's like the browser is confused.
• for IP-based fallbacks, it's returning very generic locations (e.g., datacenter location, or just a central point in the US) instead of the actual user's city/region. it's like the IP address lookup isn't getting specific enough data anymore.

Urgent Call for Help: i'm completely stuck and losing users because of this. has anyone encountered similar sudden failures with IP geolocation tools? what are the common pitfalls i might be missing? any debugging strategies or alternative, more reliable services you'd recommend for accurate IP address location? i need to fix this ASAP, any guidance would be massively appreciated! help a brother out please...