Facebook Certificate Error is also known as Expired Certificate Error. It is a strange error to encounter as everyone knows Facebook is a safe social networking web site. You may see the error when you open the website and try to log-in to your account.
A problem with your computer’s date and time settings or browser settings might cause this error.
Here are given 5 ways to fix Facebook certificate error.
1. Check Date, Time and Time Zone Settings
2. Flush the DNS Resolver Cache
3. Clean Temporary Files, Browser Registry Entries and Auto-Fill Data
4. Check for Issues with your Router and Firewall Program
5. Re-Install Website Certificate
Check Date, Time and Time Zone Settings
Before we come to the actual solution I would like to tell you why you’re getting this error. Facebook itself supports SSL protocol which is signed by Digital Certificates. You are probably getting Facebook Certificate error because the date on these self-signed Digital Certificates does not match with your system’s date or time. Verify current system date, time and time zone settings.
1. Restart your computer.
2. Press F2 or Delete key repeatedly.
3. Go to Date Time tab and check whether correct date and time is specified. If not, set-up accurate date and time.
4. Save the settings by selecting Exit menu | Save Changes and Exit.
5. Click Start, select Control Panel.
6. Click Clock, Language and Region | Date and Time.
7. In the new dialog, check whether the date & time displayed in Date and Time tab is accurate or not. If it is not click, Change Date and Time button and re-set it.
8. Now click Change Time Zone button. The Time Zone may appear. If it is incorrect please change it.
9. After setting up the new changes, click OK | Close.
10. Re-open Facebook. It shall fix Expired Security Error.
Note: In case your date and times are automatically resetting every time your computer is turned on the CMOS battery is probably discharged. You may need to replace it.
Flush the DNS Resolver Cache
DNS refers to Domain Name System. It translates the plain language web address into an Internet Protocol (IP) Address.
After changing system date, time and time zone if you still receive the error DNS cache might be the culprit. Among the top 5 ways to fix Facebook Certificate Error the best way is to clear the DNS resolver cache. Here’s how to do this:
1. Click Start, point to All Programs | Accessories.
2. Right click Command Prompt, select Run as Administrator.
3. Type the following command:
4. A message may appear saying “Successfully flushed the DNS Resolver Cache”. Type Exit and press ENTER followed by this message.
Clean Temporary Files, Browser Registry Entries and Auto-Fill Data
Among the top 5 ways to fix Facebook Certificate Error the next step is to clear-up temporary internet files, browser registry entries and auto-fill data. This step is extremely important as in many cases it was found that corrupt browser files cause certificate errors for Facebook users.
Check for Issues with your Router and Firewall Program
Did you recently replace your internet router? If yes it can be the reason behind this problem. Please try using your old router in order to fix your problem.
Disable your firewall program. Do the steps given below:
1. Click Start, type Windows Firewall with Advanced Security and press ENTER.
2. Click Action | Properties.
3. Turn off the firewall program and then click OK.
Re-Install Website Certificate
A Website Certificate is embedded with any Exchange Server or IIS service which supports SSL or TLS type of data encryption. There can be a problem with the Facebook website certificate. I would suggest you to reinstall it.
1. Click Start¸ point to All Programs | Accessories | System Tools.
2. Right click Internet Explorer (No Add-Ons), select Run as Administrator.
3. Open https://www.facebook.com/
4. If you still get the error then click the button Continue to the Website (Not Recommended).
5. Then click Certificate Error | View Certificate | Install Certificate and then confirm by clicking Yes.
6. Restart Internet Explorer.
About the Author: Nauman Lodhi is a digital media and marketing professional. He extensively writes on digital life issues. Here is one of his websites which aims to help users optimize their PC performance: SpeedupmyPC 2013.