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How to fix error code 30175-4?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

Error code 30175-4 occurs when Office is unable to connect to the Microsoft server to verify the license for the product. This can be caused by a number of things, including an incorrect or outdated product key, a corrupt or missing license file, or a problem with the Microsoft server. If you are seeing this error code, it is recommended that you contact Microsoft support for assistance.

1. Check your internet connection

  1. On your computer, open a web browser.
  2. In the address bar, type “www.speedtest.net”.
  3. Click the “Download Speed Test” link.
  4. Enter your address and click the “Start Test” button.
  5. Wait a few minutes for the test to finish.
  6. Click the “Results” link to see your download and upload speeds.
  7. If your download speed is lower than your upload speed, your internet connection is probably not working correctly.
  8. If you are still having problems, try the following solutions: a. Make sure your router is connected to the internet and that the router is working properly. b. Restore your internet connection from a previous backup. c. Reset your modem.

2. Restart your computer

  1. Restart your computer.
  2. Press the power button to turn it off.
  3. Press and hold the reset button on your computer for 10 seconds.
  4. Turn on your computer and immediately press and hold the F8 key.
  5. While holding F8, press the R key.
  6. Release F8 and press the Enter key.
  7. Select your language and keyboard layout.
  8. Select the “Command Prompt (Admin)” option.
  9. Type “net stop CMD” and press Enter.
  10. Type “net start CMD” and press Enter.
  11. Type “reboot” and press Enter.

3. Update your browser

1.Close all open browsers 2.In Windows: Click on Start, type "cmd" and hit enter 3.In Mac: Click on Applications, Utilities, Terminal and enter "cmd" 4.In Linux: Type "sudo apt-get update" or "sudo apt-get upgrade" and hit enter 5.In Chrome: At the top right of the browser, click on the three lines in a blue box. This will open the "Tools" menu. In the "Tools" menu, click on "Settings." In the "Settings" page, click on the "Advanced" tab. Under "Settings in the "Advanced" tab, click on "Clear cookies and history." In the "Clear cookies and history" dialog box, click on "Yes, delete all cookies." Click on "Close" to close the "Settings" page. 6.In Firefox: At the top right of the browser, click on the three lines in a blue box. This will open the "Tools" menu. In the "Tools" menu, click on "Options." In the "Options" page, click on the "Privacy" tab. Under "Settings in the "Privacy" tab, click on "Clear history." Click on "Yes, delete all history." Click on "Close" to close the "Options" page. 7.In Internet Explorer: Click on the "Tools" menu and then on "Internet Options." In the "Internet Options" page, click on the "Advanced" tab. Under "Settings in the "Advanced" tab, click on "Delete personal settings." In the "Delete personal settings" dialog box, click on "Yes, delete all personal settings." Click on "Close" to close the "Internet Options" page. 8.In Safari: At the top of the browser, click on the "Safari" menu and then on "Preferences." In the "Preferences" dialog box, click on the "Advanced" tab. Under "Settings in the "Advanced" tab, click on "Delete history." In the "Delete history" dialog box, click on "Yes, delete all history." Click on "Close" to close the "Preferences" dialog box.

If the answers above didn't work then you should also try:

  1. Try a different browser
  2. Clear your browser's cache and cookies
  3. Disable any browser extensions or plugins
  4. Reset your browser's settings
  5. Contact your internet service provider
  6. Contact the website owner