diff --git a/src/NzbDrone.Api/ClientSchema/SchemaBuilder.cs b/src/NzbDrone.Api/ClientSchema/SchemaBuilder.cs
index 0687a1413..0a7acb9e1 100644
--- a/src/NzbDrone.Api/ClientSchema/SchemaBuilder.cs
+++ b/src/NzbDrone.Api/ClientSchema/SchemaBuilder.cs
@@ -73,14 +73,14 @@ namespace NzbDrone.Api.ClientSchema
 
                     if (propertyInfo.PropertyType == typeof(int))
                     {
-                        var value = Convert.ToInt32(field.Value);
-                        propertyInfo.SetValue(target, value, null);
+                        var value = field.Value.ToString().ParseInt32();
+                        propertyInfo.SetValue(target, value ?? 0, null);
                     }
 
                     else if (propertyInfo.PropertyType == typeof(long))
                     {
-                        var value = Convert.ToInt64(field.Value);
-                        propertyInfo.SetValue(target, value, null);
+                        var value = field.Value.ToString().ParseInt64();
+                        propertyInfo.SetValue(target, value ?? 0, null);
                     }
 
                     else if (propertyInfo.PropertyType == typeof(int?))
diff --git a/src/NzbDrone.Core/Download/Clients/Deluge/DelugeSettings.cs b/src/NzbDrone.Core/Download/Clients/Deluge/DelugeSettings.cs
index b5fd1153e..7d9375570 100644
--- a/src/NzbDrone.Core/Download/Clients/Deluge/DelugeSettings.cs
+++ b/src/NzbDrone.Core/Download/Clients/Deluge/DelugeSettings.cs
@@ -10,7 +10,7 @@ namespace NzbDrone.Core.Download.Clients.Deluge
         public DelugeSettingsValidator()
         {
             RuleFor(c => c.Host).ValidHost();
-            RuleFor(c => c.Port).GreaterThan(0);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
 
             RuleFor(c => c.TvCategory).Matches("^[-a-z]*$").WithMessage("Allowed characters a-z and -");
         }
diff --git a/src/NzbDrone.Core/Download/Clients/Hadouken/HadoukenSettings.cs b/src/NzbDrone.Core/Download/Clients/Hadouken/HadoukenSettings.cs
index 5291c9515..f66dbb365 100644
--- a/src/NzbDrone.Core/Download/Clients/Hadouken/HadoukenSettings.cs
+++ b/src/NzbDrone.Core/Download/Clients/Hadouken/HadoukenSettings.cs
@@ -10,7 +10,7 @@ namespace NzbDrone.Core.Download.Clients.Hadouken
         public HadoukenSettingsValidator()
         {
             RuleFor(c => c.Host).ValidHost();
-            RuleFor(c => c.Port).GreaterThan(0);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
 
             RuleFor(c => c.Username).NotEmpty()
                                     .WithMessage("Username must not be empty.");
diff --git a/src/NzbDrone.Core/Download/Clients/NzbVortex/NzbVortexSettings.cs b/src/NzbDrone.Core/Download/Clients/NzbVortex/NzbVortexSettings.cs
index 411624c9d..e35f48f01 100644
--- a/src/NzbDrone.Core/Download/Clients/NzbVortex/NzbVortexSettings.cs
+++ b/src/NzbDrone.Core/Download/Clients/NzbVortex/NzbVortexSettings.cs
@@ -10,7 +10,7 @@ namespace NzbDrone.Core.Download.Clients.NzbVortex
         public NzbVortexSettingsValidator()
         {
             RuleFor(c => c.Host).ValidHost();
-            RuleFor(c => c.Port).GreaterThan(0);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
 
             RuleFor(c => c.ApiKey).NotEmpty()
                                   .WithMessage("API Key is required");
diff --git a/src/NzbDrone.Core/Download/Clients/Nzbget/NzbgetSettings.cs b/src/NzbDrone.Core/Download/Clients/Nzbget/NzbgetSettings.cs
index cbd104964..59acfde42 100644
--- a/src/NzbDrone.Core/Download/Clients/Nzbget/NzbgetSettings.cs
+++ b/src/NzbDrone.Core/Download/Clients/Nzbget/NzbgetSettings.cs
@@ -10,7 +10,7 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
         public NzbgetSettingsValidator()
         {
             RuleFor(c => c.Host).ValidHost();
-            RuleFor(c => c.Port).GreaterThan(0);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
             RuleFor(c => c.Username).NotEmpty().When(c => !string.IsNullOrWhiteSpace(c.Password));
             RuleFor(c => c.Password).NotEmpty().When(c => !string.IsNullOrWhiteSpace(c.Username));
 
diff --git a/src/NzbDrone.Core/Download/Clients/QBittorrent/QBittorrentSettings.cs b/src/NzbDrone.Core/Download/Clients/QBittorrent/QBittorrentSettings.cs
index fa6908f2c..9bb87ce63 100644
--- a/src/NzbDrone.Core/Download/Clients/QBittorrent/QBittorrentSettings.cs
+++ b/src/NzbDrone.Core/Download/Clients/QBittorrent/QBittorrentSettings.cs
@@ -10,7 +10,7 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
         public QBittorrentSettingsValidator()
         {
             RuleFor(c => c.Host).ValidHost();
-            RuleFor(c => c.Port).InclusiveBetween(0, 65535);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
         }
     }
 
diff --git a/src/NzbDrone.Core/Download/Clients/Sabnzbd/SabnzbdSettings.cs b/src/NzbDrone.Core/Download/Clients/Sabnzbd/SabnzbdSettings.cs
index 22a3389bf..a4f21b70a 100644
--- a/src/NzbDrone.Core/Download/Clients/Sabnzbd/SabnzbdSettings.cs
+++ b/src/NzbDrone.Core/Download/Clients/Sabnzbd/SabnzbdSettings.cs
@@ -10,7 +10,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
         public SabnzbdSettingsValidator()
         {
             RuleFor(c => c.Host).ValidHost();
-            RuleFor(c => c.Port).GreaterThan(0);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
 
             RuleFor(c => c.ApiKey).NotEmpty()
                                   .WithMessage("API Key is required when username/password are not configured")
diff --git a/src/NzbDrone.Core/Download/Clients/Transmission/TransmissionSettings.cs b/src/NzbDrone.Core/Download/Clients/Transmission/TransmissionSettings.cs
index 633ee7a57..d551c05d3 100644
--- a/src/NzbDrone.Core/Download/Clients/Transmission/TransmissionSettings.cs
+++ b/src/NzbDrone.Core/Download/Clients/Transmission/TransmissionSettings.cs
@@ -12,7 +12,7 @@ namespace NzbDrone.Core.Download.Clients.Transmission
         public TransmissionSettingsValidator()
         {
             RuleFor(c => c.Host).ValidHost();
-            RuleFor(c => c.Port).GreaterThan(0);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
 
             RuleFor(c => c.UrlBase).ValidUrlBase();
 
diff --git a/src/NzbDrone.Core/Download/Clients/rTorrent/RTorrentSettings.cs b/src/NzbDrone.Core/Download/Clients/rTorrent/RTorrentSettings.cs
index 81715246c..dba98c99a 100644
--- a/src/NzbDrone.Core/Download/Clients/rTorrent/RTorrentSettings.cs
+++ b/src/NzbDrone.Core/Download/Clients/rTorrent/RTorrentSettings.cs
@@ -10,7 +10,7 @@ namespace NzbDrone.Core.Download.Clients.RTorrent
         public RTorrentSettingsValidator()
         {
             RuleFor(c => c.Host).ValidHost();
-            RuleFor(c => c.Port).InclusiveBetween(0, 65535);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
             RuleFor(c => c.TvCategory).NotEmpty()
                                       .WithMessage("A category is recommended")
                                       .AsWarning(); 
diff --git a/src/NzbDrone.Core/Download/Clients/uTorrent/UTorrentSettings.cs b/src/NzbDrone.Core/Download/Clients/uTorrent/UTorrentSettings.cs
index a5e5b006f..52185b134 100644
--- a/src/NzbDrone.Core/Download/Clients/uTorrent/UTorrentSettings.cs
+++ b/src/NzbDrone.Core/Download/Clients/uTorrent/UTorrentSettings.cs
@@ -10,7 +10,7 @@ namespace NzbDrone.Core.Download.Clients.UTorrent
         public UTorrentSettingsValidator()
         {
             RuleFor(c => c.Host).ValidHost();
-            RuleFor(c => c.Port).InclusiveBetween(0, 65535);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
             RuleFor(c => c.TvCategory).NotEmpty();
         }
     }
diff --git a/src/NzbDrone.Core/Notifications/Email/EmailSettings.cs b/src/NzbDrone.Core/Notifications/Email/EmailSettings.cs
index a8c1a9851..2af0ed9b8 100644
--- a/src/NzbDrone.Core/Notifications/Email/EmailSettings.cs
+++ b/src/NzbDrone.Core/Notifications/Email/EmailSettings.cs
@@ -10,7 +10,7 @@ namespace NzbDrone.Core.Notifications.Email
         public EmailSettingsValidator()
         {
             RuleFor(c => c.Server).NotEmpty();
-            RuleFor(c => c.Port).GreaterThan(0);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
             RuleFor(c => c.From).NotEmpty();
             RuleFor(c => c.To).NotEmpty();
         }
diff --git a/src/NzbDrone.Core/Notifications/Growl/GrowlSettings.cs b/src/NzbDrone.Core/Notifications/Growl/GrowlSettings.cs
index 3c484dec7..55682003d 100644
--- a/src/NzbDrone.Core/Notifications/Growl/GrowlSettings.cs
+++ b/src/NzbDrone.Core/Notifications/Growl/GrowlSettings.cs
@@ -10,7 +10,7 @@ namespace NzbDrone.Core.Notifications.Growl
         public GrowlSettingsValidator()
         {
             RuleFor(c => c.Host).ValidHost();
-            RuleFor(c => c.Port).GreaterThan(0);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
         }
     }
 
diff --git a/src/NzbDrone.Core/Notifications/Plex/PlexClientSettings.cs b/src/NzbDrone.Core/Notifications/Plex/PlexClientSettings.cs
index 34e9e4b75..d10993d79 100644
--- a/src/NzbDrone.Core/Notifications/Plex/PlexClientSettings.cs
+++ b/src/NzbDrone.Core/Notifications/Plex/PlexClientSettings.cs
@@ -10,7 +10,7 @@ namespace NzbDrone.Core.Notifications.Plex
         public PlexClientSettingsValidator()
         {
             RuleFor(c => c.Host).ValidHost();
-            RuleFor(c => c.Port).GreaterThan(0);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
         }
     }
 
diff --git a/src/NzbDrone.Core/Notifications/Plex/PlexServerSettings.cs b/src/NzbDrone.Core/Notifications/Plex/PlexServerSettings.cs
index e792392ab..9a5d0587c 100644
--- a/src/NzbDrone.Core/Notifications/Plex/PlexServerSettings.cs
+++ b/src/NzbDrone.Core/Notifications/Plex/PlexServerSettings.cs
@@ -10,7 +10,7 @@ namespace NzbDrone.Core.Notifications.Plex
         public PlexServerSettingsValidator()
         {
             RuleFor(c => c.Host).ValidHost();
-            RuleFor(c => c.Port).GreaterThan(0);
+            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
         }
     }