Provider hosted app authentication is failing with following error message. This is a provider hosted app, which was running fine with out any error until recently. All other provider hosted apps are running fine and All provider hosted apps are sitting
on the same IIS/App server. This is SharePoint 2013 On-Prem farm.
For O365 we can use "New_MSoServicePrincialCredential" PowerShell command to re-register client secret. How to re-register new client secret for SharePoint on-Prem farm , once the client secret expires in 1-3 years. (default is 1 year).
URL (O365):
https://msdn.microsoft.com/en-us/library/office/dn726681(v=office.15).aspx
System.IdentityModel.Tokens.SecurityTokenException: Invalid JWT token. Could not
resolve issuer token
[SecurityTokenException: Invalid JWT token. Could not resolve issuer token.]
Microsoft.IdentityModel.S2S.Tokens.JsonWebSecurityTokenHandler.ReadTokenCore(String token, Boolean isActorToken)
Sai