Windows Server 2016 Workfolders

[Bankesy]

Good afternoon,

 

Hoping somebody can explain to me or walk me through how certificates should be applied or renewed for Workfolders on server 2016, in this environment I've inherited it would appear a certificate that was making all of this work has expired and subsequently client devices no longer sync documents.

 

I can see the server has Lets Encrypt installed and to me it looks like the certificate has auto renewed but I'm very confused now about what that means, am I supposed to find\export the certificate from somewhere and then import it\deploy it to clients?

 

Thanks