I've been struggling with no internet on my PC for hours, even though I'm connected via a wired LAN cable that works on other devices. Windows shows 'No internet access' and my browsers won't load anything. I don't have Wi-Fi capability on this PC. The problem started when I accidentally deleted all files related to the Proton VPN and DNS software. I'm pretty sure I didn't touch anything else. I ran some checks and can ping public servers, nslookup returns valid addresses, and I can establish TCP connections on ports 80 and 443, but HTTP/HTTPS connections don't work in any application. I tried resetting Winsock and rebooting, but that didn't help. The issue seems to be across the entire PC, not just one browser. According to the troubleshooting summary I got from an AI tool, the likely causes could be misconfigured proxy settings, local antivirus/firewall issues, leftover artifacts from Proton, or something on the ISP's end. I'm out of ideas, and I can share logs (like ipconfig, nslookup) if that would assist.
2 Answers
I’d suggest stepping away from using AI for troubleshooting. Reinstall Proton first and see if that resolves your internet issue. If it doesn’t, make sure to uninstall it properly rather than just deleting folders. You might also want to remove your NIC from Device Manager and let Windows reinstall it after a reboot. If trouble persists, see if you can find NIC driver updates manually.
It sounds like you might want to properly uninstall the Proton software instead of just deleting files. If that’s what caused the issue, try reinstalling Proton and then use the proper uninstall method. Also, consider restarting your modem or router, running the network troubleshooter in Windows, or performing a Network Adapter reset. There's a lot you can do to reset settings to their defaults.
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