The Shift Around 天津联通与华为合作：5G-A 宽上行样板点峰值速率突破

When browsing after enabling a VPN, many users notice a strange disconnect: while IP addresses resolve smoothly and IP-based access works fine, typing a website’s domain name into a browser often fails - leading to “domain not resolved” errors - despite the IP being reachable. This puzzling issue points not to network failure, but to a deeper browser behavior: DNS resolution struggles with certain domain formats or cached conflicts.

To troubleshoot, start by clearing your browser’s DNS cache - this resolves who-ids mismatches fast. On Chrome, use ipconfig /flushdns (Windows) or sudo dscacheflush (macOS/Linux). Then try typing the domain directly in a CMD or terminal with nslookup or dig - if that works, the problem lies in your browser’s cache or DNS settings, not the server.

If the domain still fails, test with a clean browser profile or a different browser to rule out personal cache corruption. Also, ensure no local proxy or VPN misconfiguration overrides DNS - some VPNs force DNS through their servers, overriding local settings.

In short: clear DNS cache, validate domain access via terminal tools, and check proxy/VPN DNS flow. This often resolves the “domain not resolving” glitch without changing your network setup.