diff --git a/resources/language/English/strings.xml b/resources/language/English/strings.xml
index 76bd7279..539241ab 100644
--- a/resources/language/English/strings.xml
+++ b/resources/language/English/strings.xml
@@ -12,6 +12,8 @@
     <string id="30009">Transcode: </string>
     <string id="30010">Enable Performance Profiling</string>
     <string id="30011">Local caching system</string>
+    <string id="30012">OK</string>
+    <string id="30013">Never show</string>
 
     <string id="30014">Connection</string>
     <string id="30015">Network</string>    
@@ -439,6 +441,7 @@
     <string id="39076">If you use several Plex libraries of one kind, e.g. "Kids Movies" and "Parents Movies", be sure to check the Wiki: https://goo.gl/JFtQV9</string>
     <string id="39077">Number of PMS items to show in widgets (e.g. "On Deck")</string>
     <string id="39078">Plex Companion Update Port (change only if needed)</string>
+    <string id="39079">Plex Companion could not open the GDM port. Please change it in the PKC settings.</string>
 
     <!-- Plex Entrypoint.py -->
     <string id="39200">Log-out Plex Home User </string>
diff --git a/resources/language/German/strings.xml b/resources/language/German/strings.xml
index e19b29dc..89b82879 100644
--- a/resources/language/German/strings.xml
+++ b/resources/language/German/strings.xml
@@ -12,6 +12,9 @@
     <string id="30009">Transkodieren: </string>
     <string id="30010">Performancemessung aktivieren</string>
     <string id="30011">Caching-Mechanismus</string>
+    <string id="30012">OK</string>
+    <string id="30013">Nie anzeigen</string>
+
     <string id="30500">Host SSL Zertifikat überprüfen (sicherer)</string>
     <string id="30507">Synchronisations-Fortschritt anzeigen</string>
     <string id="30512">Zwischenspeichern von PMS Bildern erzwingen</string>
@@ -388,6 +391,7 @@
     <string id="39076">Falls du mehrere Plex Bibliotheken einer Art nutzt, z.B. "Filme Kinder" und "Filme Eltern", lies unbedingt das Wiki unter https://goo.gl/JFtQV9</string>
     <string id="39077">Anzahl anzuzeigender PMS Einträge in Widgets (z.B. "Aktuell")</string>
     <string id="39078">Plex Companion Update Port (nur bei Bedarf ändern)</string>
+    <string id="39079">Plex Companion konnte den GDM Port nicht öffnen. Bitte den Port in den PKC Einstellungen ändern.</string>
 
     <!-- Plex Entrypoint.py -->
     <string id="39200">Plex Home Benutzer abmelden: </string>
diff --git a/resources/lib/plexbmchelper/plexgdm.py b/resources/lib/plexbmchelper/plexgdm.py
index 7750566c..94fc492e 100644
--- a/resources/lib/plexbmchelper/plexgdm.py
+++ b/resources/lib/plexbmchelper/plexgdm.py
@@ -29,7 +29,7 @@ import time
 from xbmc import sleep
 
 import downloadutils
-from utils import window, settings
+from utils import window, settings, dialog, language
 
 ###############################################################################
 
@@ -107,6 +107,17 @@ class plexgdm:
             log.error("Unable to bind to port [%s] - Plex Companion will not "
                       "be registered. Change the Plex Companion update port!"
                       % self.client_update_port)
+            if settings('companion_show_gdm_port_warning') == 'true':
+                if dialog('yesno',
+                          language(29999),
+                          'Port %s' % self.client_update_port,
+                          language(39079),
+                          yeslabel=language(30013),  # Never show again
+                          nolabel=language(30012)):  # OK
+                    settings('companion_show_gdm_port_warning', value='false')
+                from xbmc import executebuiltin
+                executebuiltin(
+                    'Addon.OpenSettings(plugin.video.plexkodiconnect)')
             return
 
         update_sock.setsockopt(socket.IPPROTO_IP,
diff --git a/resources/settings.xml b/resources/settings.xml
index 7b4ea57f..524e6a00 100644
--- a/resources/settings.xml
+++ b/resources/settings.xml
@@ -43,6 +43,7 @@
 
 		<setting id="plex_restricteduser" type="bool" default="false" visible="false"/>
 		<setting id="plex_allows_mediaDeletion" type="bool" default="true" visible="false"/>
+		<setting id="companion_show_gdm_port_warning" type="bool" default="true" visible="false"/>
 	</category>
 
 	<category label="30506"><!-- Sync Options -->