# Peer certificate cannot be authenticated with known CA certificates

**URL:** <https://forum.mautic.org/t/peer-certificate-cannot-be-authenticated-with-known-ca-certificates/3261>\
**Category:** Product Support\
**Created:** [January 19, 2016, 4:05pm UTC](https://forum.mautic.org/t/peer-certificate-cannot-be-authenticated-with-known-ca-certificates/3261 "2016-01-19T16:05:15Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![markofeldman](https://avatars.discourse-cdn.com/v4/letter/m/439d5e/32.png) [@markofeldman](https://forum.mautic.org/u/markofeldman)\
**Post date:** [January 19, 2016, 4:05pm UTC](https://forum.mautic.org/t/peer-certificate-cannot-be-authenticated-with-known-ca-certificates/3261/1 "2016-01-19T16:05:15Z")

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Trying to utilize the vtiger plugin and get the following error: Peer certificate cannot be authenticated with known CA certificates  
  
  
  
I used the correct vtiger access Key  
  
It tells me that the integration was successful then it shows the authentication error.  
  
  
  
Any help would be appreciated.

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<div class="post-metadata">

**Author:** ![markofeldman](https://avatars.discourse-cdn.com/v4/letter/m/439d5e/32.png) [@markofeldman](https://forum.mautic.org/u/markofeldman)\
**Post date:** [January 19, 2016, 4:05pm UTC](https://forum.mautic.org/t/peer-certificate-cannot-be-authenticated-with-known-ca-certificates/3261/2 "2016-01-19T16:05:15Z")

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Trying to utilize the vtiger plugin and get the following error: Peer certificate cannot be authenticated with known CA certificates

I used the correct vtiger access Key  
It tells me that the integration was successful then it shows the authentication error.

Any help would be appreciated.

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<div class="post-metadata">

**Author:** ![escopecz](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/escopecz/32/370_2.png) [@escopecz](https://forum.mautic.org/u/escopecz)\
**Post date:** [January 20, 2016, 11:01am UTC](https://forum.mautic.org/t/peer-certificate-cannot-be-authenticated-with-known-ca-certificates/3261/3 "2016-01-20T11:01:13Z")

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The certificate error is related probably to your SSL certificate than Mautic.

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**Author:** ![markofeldman](https://avatars.discourse-cdn.com/v4/letter/m/439d5e/32.png) [@markofeldman](https://forum.mautic.org/u/markofeldman)\
**Post date:** [January 20, 2016, 3:41pm UTC](https://forum.mautic.org/t/peer-certificate-cannot-be-authenticated-with-known-ca-certificates/3261/4 "2016-01-20T15:41:39Z")

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Thanks for your reply. How would I correct that?

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**Author:** ![escopecz](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/escopecz/32/370_2.png) [@escopecz](https://forum.mautic.org/u/escopecz)\
**Post date:** [January 21, 2016, 9:05am UTC](https://forum.mautic.org/t/peer-certificate-cannot-be-authenticated-with-known-ca-certificates/3261/5 "2016-01-21T09:05:31Z")

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Ask that your server provider.