![Sectigo on Twitter: "Sectigo's AddTrust legacy root expired earlier today. You can find a full technical description in our Knowledgebase article https://t.co/pH3Cy6QI8y and accompanying FAQ https://t.co/D00mYP8DFj" / Twitter Sectigo on Twitter: "Sectigo's AddTrust legacy root expired earlier today. You can find a full technical description in our Knowledgebase article https://t.co/pH3Cy6QI8y and accompanying FAQ https://t.co/D00mYP8DFj" / Twitter](https://pbs.twimg.com/media/EZcXQGSXgAARp8R.jpg)
Sectigo on Twitter: "Sectigo's AddTrust legacy root expired earlier today. You can find a full technical description in our Knowledgebase article https://t.co/pH3Cy6QI8y and accompanying FAQ https://t.co/D00mYP8DFj" / Twitter
Cisco IP-Telefone der Serien 7800/8800 können sich nicht über MRA registrieren, wenn das Abonnement für das Sectigo/Addtrust-
![CentreStack issues with MacClient OpenSSL connection due to Sectigo AddTrust External CA Root Expiring on May 30, 2020 – Gladinet CentreStack issues with MacClient OpenSSL connection due to Sectigo AddTrust External CA Root Expiring on May 30, 2020 – Gladinet](https://support.centrestack.com/hc/article_attachments/360076379993/mceclip5.png)