Access to the Site Blocks the Antivirus or FirewallĪlso, very often antiviruses and firewalls block sites that are located in their database of malicious sites. For 3G/4G USB modem it’s better to set the value to 1476. Most likely you use the value of MTU 1500, try to change it to 1460, or 1420. Specify the maximum MTU size from your ISP. If you use the wrong MTU size, there may be problems with opening some sites in browsers, VoIP failures, a problem with receiving or transferring files over the network.Ĭheck the current MTU value in your Windows system and in the settings of the router. The MTU (Maximum Transmission Unit) parameter specifies the maximum packet size that can be transmitted over the TCP/IP network without fragmentation. Reset all static routes in the routing table (except for the default routes) with the command: route –fĪfter running the command, restart the computer and try to open the website. Some viruses can add statically entries to the routing table. If it specifies the path to the dll files, manually remove these files and clear the registry value. Open Registry Editor and go to the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows. Try to install a different browser (for example, if you have Chrome installed – try to use Firefox).Ĭheck the system for loaded dll modules. Solution 5: Browser ProblemsĬheck the proxy server settings in the browser, disable unnecessary plug-ins and extensions. Check Your Computer with AntivirusĬheck your computer with portable antivirus (Microsoft Safety Scanner, Avira PC Cleaner, Kaspersky Security Scan, Dr.Web CureIt). If you see any third-party site addresses that you can’t open, then you need to delete them and save the hosts file. Run the command: Notepad C:\Windows\System32\drivers\etc\hosts Check if the hosts file contains unnecessary entries (by default, the hosts files do not have static mappings between DNS names and IP addresses). Some viruses modify the hosts file to redirect traffic to fake sites. Restart the computer, and try to open websites that was not loading Solution 3: Checking the Hosts File
Open the Command prompt with administrator privileges and run the command: netsh winsock reset
Try to reset the TCP/IP network stack settings to standard.
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