UserPrincipals.GetAuthorizationGroups An error (1301) occurred while enumerating the groups. After upgrading to Server 2012 Domain Controller

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Similar Issue with workaround, but not actual solution to existing problem

Similar issue pointing to Microsoft End Point update as

Answer 1

Here's my solution. It seems to work consistently well. Because the problem happens when iterating over the collection, I use a different approach when iterating in order to handle the exception without blocking the actual iterating:

private string[] GetUserRoles(string Username)
{    
    List roles = new List();
    try
    {
        string domain = Username.Contains("\\") ? Username.Substring(0, Username.IndexOf("\\")) : string.Empty;
        string username = Username.Contains("\\") ? Username.Substring(Username.LastIndexOf("\\") + 1) : Username;
        if (!string.IsNullOrEmpty(domain) && !string.IsNullOrEmpty(username))
        {
            PrincipalContext principalContext = new PrincipalContext(ContextType.Domain, domain);
            UserPrincipal user = UserPrincipal.FindByIdentity(principalContext, username);
            if (user != null)
            {
                PrincipalSearchResult groups = user.GetAuthorizationGroups();
                int count = groups.Count();
                for (int i = 0; i < count; i++)
                {
                    IEnumerable principalCollection = groups.Skip(i).Take(1);
                    Principal principal = null;
                    try
                    {
                        principal = principalCollection.FirstOrDefault();
                    }
                    catch (Exception e)
                    {
                        //Error handling...
                        //Known exception - sometimes AD can't query a particular group, requires server hotfix?
                        //http://support.microsoft.com/kb/2830145
                    }

                    if (principal!=null && principal is GroupPrincipal)
                    {
                        GroupPrincipal groupPrincipal = (GroupPrincipal)principal;
                        if (groupPrincipal != null && !string.IsNullOrEmpty(groupPrincipal.Name))
                        {
                            roles.Add(groupPrincipal.Name.Trim());
                        }
                    }
                }
            }
        }
    }
    catch (Exception e)
    {
        //Error handling...
    }
    return roles.ToArray();
}