I have read the websites and support forums telling me to fix this error by running the New-ExchangeCertificate Cmdlet.

When I open powershell and type New-ExchangeCertificate it responds back that 

 "The term 'New-ExchangeCertificate' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path 
is correct and try again."

I have exchange server 2013 cumulative update 6 installed. 

Any help is apprciated.

Chris

Are you opening the Exchange Management Shell or just regular ol' PowerShell?

I was opening it in PS, I have management shell open now, can you help me with the proper command to generate the cert? 

It's been a few months since I've done this myself, can't remember off the top of my head.

What instructions were you following that advised the use of the New-ExchangeCertificate command? Do the rest of those instructions not apply?

looks like I did it with this.

Get-ExchangeCertificate -thumbprint C5DD5B60949267AD624618D8492C4C5281FDD10F | New-ExchangeCertificate

Thanks for pointing me in the right direction with exchange management shell

Chris