diff --git a/plexpy/api2.py b/plexpy/api2.py
index eb3ced99..4b561774 100644
--- a/plexpy/api2.py
+++ b/plexpy/api2.py
@@ -120,7 +120,7 @@ class API2:
             self._api_app = True
 
         if plexpy.CONFIG.API_ENABLED and not self._api_msg or self._api_cmd in ('get_apikey', 'docs', 'docs_md'):
-            if self._api_apikey == plexpy.CONFIG.API_KEY or (self._api_app and self._api_apikey == mobile_app.TEMP_DEVICE_TOKEN):
+            if self._api_apikey == plexpy.CONFIG.API_KEY or (self._api_app and self._api_apikey == mobile_app.get_temp_device_token()):
                 self._api_authenticated = True
 
             elif self._api_app and mobile_app.get_mobile_device_by_token(self._api_apikey):
@@ -404,7 +404,7 @@ class API2:
         if result:
             self._api_msg = 'Device registration successful.'
             self._api_result_type = 'success'
-            mobile_app.TEMP_DEVICE_TOKEN = None
+            mobile_app.set_temp_device_token(None)
         else:
             self._api_msg = 'Device registartion failed: database error.'
             self._api_result_type = 'error'
diff --git a/plexpy/mobile_app.py b/plexpy/mobile_app.py
index af565cac..38c6d2b7 100644
--- a/plexpy/mobile_app.py
+++ b/plexpy/mobile_app.py
@@ -14,6 +14,7 @@
 #  along with Tautulli.  If not, see <http://www.gnu.org/licenses/>.
 
 import time
+import threading
 
 import plexpy
 import database
@@ -22,6 +23,24 @@ import logger
 
 
 TEMP_DEVICE_TOKEN = None
+INVALIDATE_TIMER = None
+
+
+def set_temp_device_token(token=None):
+    global TEMP_DEVICE_TOKEN
+    TEMP_DEVICE_TOKEN = token
+
+    if TEMP_DEVICE_TOKEN is not None:
+        global INVALIDATE_TIMER
+        if INVALIDATE_TIMER:
+            INVALIDATE_TIMER.cancel()
+        invalidate_time = 5 * 60  # 5 minutes
+        INVALIDATE_TIMER = threading.Timer(invalidate_time, set_temp_device_token, args=[None])
+        INVALIDATE_TIMER.start()
+
+
+def get_temp_device_token():
+    return TEMP_DEVICE_TOKEN
 
 
 def get_mobile_devices(device_id=None, device_token=None):
diff --git a/plexpy/webserve.py b/plexpy/webserve.py
index 7389ceaa..adce6be2 100644
--- a/plexpy/webserve.py
+++ b/plexpy/webserve.py
@@ -3587,12 +3587,12 @@ class WebInterface(object):
     @requireAuth(member_of("admin"))
     def verify_mobile_device(self, device_token='', cancel=False, **kwargs):
         if helpers.bool_true(cancel):
-            mobile_app.TEMP_DEVICE_TOKEN = None
+            mobile_app.set_temp_device_token(None)
             return {'result': 'error', 'message': 'Device registration cancelled.'}
 
         result = mobile_app.get_mobile_device_by_token(device_token)
         if result:
-            mobile_app.TEMP_DEVICE_TOKEN = None
+            mobile_app.set_temp_device_token(None)
             return {'result': 'success', 'message': 'Device registered successfully.', 'data': result}
         else:
             return {'result': 'error', 'message': 'Device not registered.'}
@@ -3879,7 +3879,7 @@ class WebInterface(object):
         logger._BLACKLIST_WORDS.add(apikey)
 
         if helpers.bool_true(device):
-            mobile_app.TEMP_DEVICE_TOKEN = apikey
+            mobile_app.set_temp_device_token(apikey)
 
         return apikey