Only two employess cannot login to an Android tablet at a site. The employee's records were compared to other employees and no difference can be seen.

Below is the text from the log when the employee unsuccessfully attempts to login.

2019-05-29 12:10:17.0832Z Error <unknown> Ivara.PL.FatalExceptionPolicy [27] Invalid Configuration User failed to authenticate caught at: [?CreateSession@Server@PL@Ivara@@$$FUE$AAMPE$AAUISession@Interfaces@23@PE$AAVCredentials@Authentication@Common@3@W4egSessionTypes@523@W4eClientSessionSubType@523@PE$AAVString@System@@333@Z,f:\src\hotfixes\7.11.0.205\apm\presentationlayer\pl\server.cpp,2584] EXCEPTION OCCURRED:InvalidUserNameException User failed to authenticate    at Ivara.PL.Session.SetUser(Credentials credentials)
   at Ivara.PL.Server.CreateSession(Credentials credentials, egSessionTypes eType, eClientSessionSubType eClientSessionSubType, String applicationProviderName, String deviceName, String deviceUserName, String clientIP)
InvalidCredentialException Failed to authenticate with username/password combination    at Ivara.Common.Authentication.WindowsAuthenticator.Validate(IWindowsCredentials credentials) in F:\SRC\hotfixes\7.11.0.205\APM\common\IvaraCommon\Authentication\Authenticators\WindowsAuthenticator.cs:line 88
   at Ivara.Common.Authentication.AggregateAuthenticator.Validate(ICredentials credentials) in F:\SRC\hotfixes\7.11.0.205\APM\common\IvaraCommon\Authentication\Authenticators\AggregateAuthenticator.cs:line 39
   at Ivara.PL.Session.SetUser(Credentials credentials)