The “This site can’t be reached” error is one of the most common browser problems faced by users on Windows, Android, and even iOS devices. You try to open a website, and instead of the page loading, the browser shows an error message saying the site can’t be reached.
I’ve personally faced this error many times while browsing on both Wi-Fi and mobile data. Sometimes the issue was with DNS settings, and other times it was caused by browser cache or network misconfiguration. After testing multiple fixes, I found a few solutions that consistently resolved the issue.
In this article, I’ll explain why this error appears and share step-by-step fixes that actually work.
What Does “This Site Can’t Be Reached” Mean?
This error means:
- Your device cannot connect to the website’s server
- The website address may be correct, but the connection failed
- The issue can be temporary or device-related
The problem is usually related to DNS, network connection, browser settings, or server availability.
Common Reasons Behind “This Site Can’t Be Reached” Error
1. DNS Server Issues
DNS translates website names into IP addresses. If DNS fails, the site won’t load.
2. Internet Connection Problems
A weak or unstable internet connection can interrupt access.
3. Browser Cache or Data Corruption
Old or corrupted cache files can block websites.
4. Incorrect Website Address
A small typing mistake can trigger this error.
5. Firewall, VPN, or Antivirus Blocking Access
Security tools sometimes block websites by mistake.
Fixes That Actually Work
Method 1: Check the Website on Another Device
Before changing settings:
- Open the same website on another device
- Use mobile data if Wi-Fi fails
If the site doesn’t open anywhere, the problem may be on the website’s side.
Method 2: Restart Router and Device
This simple step fixes many temporary network issues.
What to do:
- Turn off router and modem
- Wait 30–60 seconds
- Turn them back on
- Restart your device
Method 3: Clear Browser Cache and Cookies
Corrupted cache can block website access.
Steps (Chrome example):
- Open Chrome
- Go to Settings → Privacy and security
- Select Clear browsing data
- Clear cache and cookies
- Restart the browser
Method 4: Change DNS Server
This is one of the most effective fixes.
Recommended DNS:
- Google DNS:
8.8.8.8/8.8.4.4 - Cloudflare DNS:
1.1.1.1
Changing DNS often resolves the issue instantly.
Method 5: Disable VPN or Proxy Temporarily
VPNs can interfere with website connections.
Steps:
- Turn off VPN
- Disable proxy settings
- Try opening the website again
Method 6: Flush DNS Cache (Windows)
This clears outdated DNS records.
Steps:
- Open Command Prompt as administrator
- Type:
ipconfig /flushdns - Press Enter
- Restart browser
Method 7: Check Firewall or Antivirus Settings
Security software may block websites mistakenly.
What to do:
- Temporarily disable antivirus/firewall
- Test website access
- Add the site to the allowed list if needed
Why This Error Appears Frequently on Public Wi-Fi
Public Wi-Fi networks often:
- Block certain websites
- Require login pages
- Use restricted DNS servers
Try opening any random website to trigger the login page.
FAQs
Is “This site can’t be reached” a browser issue?
Not always. It’s often related to DNS or network settings.
Can mobile data cause this error?
Yes, unstable mobile data can trigger it.
Does clearing cache delete passwords?
It can if cookies are cleared, so sign-in may be required again.
Is changing DNS safe?
Yes, it does not affect personal data.
Final Thoughts
The “This site can’t be reached” error can usually be fixed within minutes if you identify the real cause.
From my experience, changing the DNS server and clearing browser cache solved the issue most of the time. Try the fixes step by step, and the website should load normally again.
Vaishnav Singh is the founder and primary author of TechHary.com. Based in Mumbai, he brings hands-on professional experience to his writing, having worked extensively as a Windows expert within the IT industry. His practical background in solving complex technical issues fuels his passion for creating clear, helpful, and relevant content. At TechHary.com, Vaishnav dedicates himself to publishing in-depth articles, guides, and insights aimed at demystifying technology for enthusiasts and professionals alike. His mission is to build a trusted resource where readers can find reliable information to navigate the ever-evolving tech landscape.