I've been facing a really strange issue with one specific website that I can't seem to access. About a week and a half ago, I started getting a security certificate warning for the site, which usually resolves itself. However, it hasn't this time. On my desktop, I get the warning in Chrome but not in Firefox. Interestingly, the site works fine on my laptop, and my partner's computer on the same network can access it without problems.
Lately, my desktop has completely blocked the site in all browsers, showing timeout errors, while pinging from my laptop works just fine. I even tried booting my desktop in safe mode with networking, but the issue persists. I've gone through a bunch of troubleshooting methods like resetting my router, checking firewall settings, and trying a VPN, but nothing has worked so far. I'm unsure whether it's a problem with my OS or a deeper issue. Has anyone experienced something similar or have any suggestions?
5 Answers
Check the hosts file located at `C:WindowsSystem32driversetchosts` to see if `sumodb.sumogames.de` is listed there. Something might be rerouting the site to another IP, which could explain the certificate issues. Compare the IP you get with a ping from your desktop versus the other devices. If they differ, that could be the root cause. Also, do you think any sensitive info was entered on the site while it had security warnings? You should treat that info as potentially compromised.
Have you tried booting from a live Linux USB? That can help isolate if it’s a Windows issue. If you can access the site from there, then your Windows installation is likely the problem.
I had a similar problem where I couldn't access a certain site due to geoblocks on my router. Make sure no unusual settings are blocking your connection, especially if you've tinkered with any security settings recently.
Just a heads up—make sure your date and time are set correctly on your computer. It sounds basic, but it can really affect SSL certificates and access.
Great point! You might want to try resetting your network settings as well. A quick IPCONFIG /FLUSHDNS could help. Switching to a different DNS provider might also resolve the issue.
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