Unable to sync with server.

Hi,

I am getting below error when trying to login to Sugar instance:

Unable to sync with server. A request is failing that makes the application unusable. Please contact technical support.

Could anyone help how to resolve this please?

Thanks

  • We are getting the same error this morning, the SugarCRM log has the following listed:

    Mon Dec  2 08:05:34 2019 [5376][-none-][ERROR] An exception happened: ( 401 Unauthorized: invalid_grant)The access token provided is invalid.

    Any resolution for this?

  • Hi Dennis, I haven't found any solution for this yet.

  • We discovered the problem, by default user sessions are stored in C:\Windows\Temp.  Windows user permission changed resulting in the IIS user not able to write to the folder.  We changed the user session path to session.save_path = "C:\PHP\Sessions\" in the PHP.ini. Problem solved.