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My VPN suddenly stopped working

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kd7vea
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Joined: Fri Dec 08, 2017 7:52 pm

My VPN suddenly stopped working

Fri Nov 09, 2018 1:50 am

I had a VPN working for almost a year with no issues, nothing changed that I know of except for Windows updates, but one morning I tried to connect to my VPN and I get the Message "Can't connect, A certificate chain processed, but was terminated in a root certificate that is not trusted by the trust provider" I have set up several other VPS exactly the same way, and I have tried deleting my certificates and recreating them to try to get it to work, but I keep getting the same message. What could be causing this issue? Here are the steps I use to create the certificate.
Code: Select all
[admin@MikroTik] > /certificate 
[admin@MikroTik] /certificate> add name=CA common-name="MY IP ADDRESS" key-usage=key-cert-sign,crl-sign days-valid=3650 key-size=4096 
[admin@MikroTik] /certificate> sign CA ca-crl-host=MY IP ADDRESS x.x.x.x 
[admin@MikroTik] /certificate> add name=SVR common-name="SVR" key-usage=digital-signature,key-encipherment,data-encipherment days-valid=3650 key-size=4096 
[admin@MikroTik] /certificate> sign SVR ca=CA 
[admin@MikroTik] /certificate> set trusted=yes SVR
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Klose
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Re: My VPN suddenly stopped working

Fri Nov 09, 2018 8:14 am

Make sure that you install the client certificate on your local computer. And the root certificate you created is also installed in the trusted root store.
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kd7vea
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Re: My VPN suddenly stopped working

Fri Nov 09, 2018 7:53 pm

Yes, the certificate was installed correctly. Everything had been working and then one morning, it stopped, and I have done nothing that would have changed it. I have set up 5 or 6 of these units as VPN connections, and I have done them all the same. so I went through the certificate process multiple times, and I still can't get this one working.
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satman1w
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Re: My VPN suddenly stopped working

Fri Mar 08, 2019 10:55 am

Hi,

I wonder if you ever find an answer to your problem?

I am asking because I have stumbled to the same, and have no idea how to solve it. All answers I found are about placing the certificate to the right folder, which already is...

best regards
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KevinMcKinney
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Joined: Fri Mar 15, 2019 1:01 pm
Location: New York

Re: My VPN suddenly stopped working

Fri Mar 15, 2019 1:23 pm

What Windows update did you install? Perhaps this is the reason. Or, as wrote above, that the root certificate is not installed in the trusted root store.
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satman1w
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Re: My VPN suddenly stopped working

Tue Mar 26, 2019 3:14 pm

Hi Kevin,

I have done everything by the book (certificates in the right place and so on..) and after few days of pain I have successfully started one vpn on one computer, but not on all of them (for this experiment I am using two physical machines and three virtual Machines in VMware WS 14).
So until I'll be able to replicate this on whatever computer I want, the problem stays unsolved... :-(

p.s. all the machines have the latest Win 10 LTSC fully updated...

best regards
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