Cached SSL Certificates?

[mdrabble]

Interesting issue appeared yesterday on our externally hosted website.

 

The SSL Cert used was set to expire on the 18th and the hosting providers have since renewed it - so https working fine...... BUT

 

Externally, access is fine

Internally I and getting connection not secure, and the certificate being shown is the old one.

 

I've cleared the cached certificates in smoothwall and also cleared same via internet options and cleared browser cached etc.

 

But issue still exists.

 

Anyone any idea what I can try next?

[3s-gtech]

Old cert added to cert store via GP?

[mdrabble]

Old cert added to cert store via GP?

 

nope, cert no installed on PC - have searched for the cert using powershell and not on local PC

[mdrabble]

After doing some testing, could be smoothwall causing the issue - as any device not connected to network, works fine, soon as laptop or mobile connected then they get the SSL error.

 

Think a reboot is in order.

[mdrabble]

Well smoothwall reboot did nothing and I'm scratching my head

 

Website is externally hosted and managed, so all we do is add content.

 

When viewing from school network, I get https error - connection not private, as the certificate has expired.

 

If I view from any device not connected to the network, it works fine and I can see the new certificate.

 

Thoughts and ideas welcome on what to look at try next.

[BOOT]

Antivirus software could be intercepting and caching certificates.

[mdrabble]

Think it could be Cloudflare proxying the DNS and providing a valid certificate - as when I disable the DNS proxy to DNS only, I suddenly get the same issues externally.

 

Just on hold waiting to speak to the hosting providers to check the current SSL Cert.