diff --git a/src/Infrastructure/BotSharp.Abstraction/Repositories/Filters/RoleFilter.cs b/src/Infrastructure/BotSharp.Abstraction/Repositories/Filters/RoleFilter.cs
index 7c6c738a7..00204eea4 100644
--- a/src/Infrastructure/BotSharp.Abstraction/Repositories/Filters/RoleFilter.cs
+++ b/src/Infrastructure/BotSharp.Abstraction/Repositories/Filters/RoleFilter.cs
@@ -4,10 +4,7 @@ namespace BotSharp.Abstraction.Repositories.Filters;
 
 public class RoleFilter
 {
-    [JsonPropertyName("names")]
     public IEnumerable<string>? Names { get; set; }
-
-    [JsonPropertyName("exclude_roles")]
     public IEnumerable<string>? ExcludeRoles { get; set; } = UserConstant.AdminRoles;
 
 
diff --git a/src/Infrastructure/BotSharp.OpenAPI/Controllers/User/RoleController.cs b/src/Infrastructure/BotSharp.OpenAPI/Controllers/User/RoleController.cs
index 7b356f930..9ab93df47 100644
--- a/src/Infrastructure/BotSharp.OpenAPI/Controllers/User/RoleController.cs
+++ b/src/Infrastructure/BotSharp.OpenAPI/Controllers/User/RoleController.cs
@@ -36,8 +36,8 @@ public async Task<IEnumerable<string>> GetRoleOptions()
     }
 
     [BotSharpAuth]
-    [HttpPost("/roles")]
-    public async Task<IEnumerable<RoleViewModel>> GetRoles([FromBody] RoleFilter? filter = null)
+    [HttpGet("/roles")]
+    public async Task<IEnumerable<RoleViewModel>> GetRoles([FromQuery] RoleFilter? filter = null)
     {
         if (filter == null)
         {
diff --git a/src/Plugins/BotSharp.Plugin.ChatHub/SignalRHub.cs b/src/Plugins/BotSharp.Plugin.ChatHub/SignalRHub.cs
index a261084bb..d39ed7152 100644
--- a/src/Plugins/BotSharp.Plugin.ChatHub/SignalRHub.cs
+++ b/src/Plugins/BotSharp.Plugin.ChatHub/SignalRHub.cs
@@ -12,7 +12,8 @@ public class SignalRHub : Hub
     private readonly IUserIdentity _user;
     private readonly IHttpContextAccessor _context;
 
-    public SignalRHub(IServiceProvider services, 
+    public SignalRHub(
+        IServiceProvider services, 
         ILogger<SignalRHub> logger,
         IUserIdentity user,
         IHttpContextAccessor context)
@@ -25,15 +26,16 @@ public SignalRHub(IServiceProvider services,
 
     public override async Task OnConnectedAsync()
     {
-        _logger.LogInformation($"SignalR Hub: {_user.FirstName} {_user.LastName} ({Context.User.Identity.Name}) connected in {Context.ConnectionId}");
-
         var convService = _services.GetRequiredService<IConversationService>();
-        var httpContext = Context.GetHttpContext();
+        var httpContext = Context?.GetHttpContext();
+
+        _logger.LogInformation($"SignalR Hub: {_user?.FirstName} {_user?.LastName} ({Context?.User?.Identity?.Name ?? "Unkown user"}) connected in {Context?.ConnectionId}");
+
         string? conversationId = httpContext?.Request?.Query["conversation-id"].FirstOrDefault();
 
         if (!string.IsNullOrEmpty(conversationId))
         {
-            _logger.LogInformation($"Connection {Context.ConnectionId} is with conversation {conversationId}");
+            _logger.LogInformation($"Connection {Context?.ConnectionId} is with conversation {conversationId}");
             await AddGroup(conversationId);
 
             var conv = await convService.GetConversation(conversationId);