How to Clear Cache
In Firefox
In Firefox
Click the menu button
and select Settings.
Select the Privacy & Security panel.
In the Cookies and Site Data section, click Clear Data….
Remove the check mark in front of Cookies and Site Data.
With Cached Web Content check marked, click the Clear button.
Close the about:preferences page. Any changes you've made will automatically be saved.
In Edge
In Edge
Select Settings and more > Settings > Privacy, search, and services .
Under Clear browsing data > Clear browsing data now, select Choose what to clear.
Under Time range, choose a time range from the drop-down menu.
Choose the types of browsing data you want to clear.
Select Clear now.
How to Clear (Flush) DNS
How to Clear (Flush) DNS
If you experience ISP-related issues, clearing (flush) DNS may help you. Please get in touch with your IT department before proceeding.
Press the Windows + R keys at the same time and enter cmd.
You may see a popup asking if you want to allow Command Prompt to make changes to your computer. If you do, select Yes.
If you are asked for an administrative login at this point, then you’ll need to contact your system administrator to proceed.
In the command prompt window, type "ipconfig /flushdns"
Press Enter.
You should see a message confirming that the DNS Resolver Cache was successfully flushed.