Applications that are open and may interfere with your Internet Communications.
Internet Connection is damaged or corrupted.
Problem with your PC settings and options.
You have a high usage of your Internet.
Your firewall is blocking your connection.
To Fix This:
Step 1. Make sure you are connected to the Internet.
Open your browser.
Type speedtest.net on the URL box.
Test your Internet speed.
If the page will open then you are connected. Otherwise, contact your ISP.
Step 2. Check your Firewall Settings
Right-click Firewall icon.
Browse the settings.
Place the following websites on the exceptions list:
Step 3. Temporarily disable your anti virus software.
Step 4.Can you try a manual reset of your router.