diff --git a/custom_components/alpha_innotec/api.py b/custom_components/alpha_innotec/api.py
index 4b0db10..4a41222 100644
--- a/custom_components/alpha_innotec/api.py
+++ b/custom_components/alpha_innotec/api.py
@@ -1,9 +1,12 @@
 import base64
 import logging
 
+import requests
 from backports.pbkdf2 import pbkdf2_hmac
 from Crypto.Cipher import AES
 from Crypto.Hash import SHA256
+from requests.adapters import HTTPAdapter
+from urllib3 import Retry
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -22,6 +25,17 @@ def __init__(self, hostname: str, username: str, password: str) -> None:
         self.last_request_signature: str | None = None
         self.udid: str = "homeassistant"
 
+        self.session = requests.Session()
+        self.session.mount(
+            prefix='http://',
+            adapter=HTTPAdapter(
+                max_retries=Retry(
+                    total=5,
+                    backoff_factor=3
+                )
+            )
+        )
+
     @staticmethod
     def string_to_charcodes(data: str) -> str:
         a = ""
diff --git a/custom_components/alpha_innotec/controller_api.py b/custom_components/alpha_innotec/controller_api.py
index 25ba967..06eb1ac 100644
--- a/custom_components/alpha_innotec/controller_api.py
+++ b/custom_components/alpha_innotec/controller_api.py
@@ -42,7 +42,7 @@ def call(self, endpoint: str, data: dict = None) -> dict:
 
             _LOGGER.debug("[%s] - body: %s", endpoint, urlencoded_body)
 
-            response = requests.post("http://{hostname}/{endpoint}".format(hostname=self.api_host, endpoint=endpoint),
+            response = self.session.post("http://{hostname}/{endpoint}".format(hostname=self.api_host, endpoint=endpoint),
                                      data=urlencoded_body,
                                      headers={'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'}
                                      )
@@ -64,7 +64,7 @@ def call(self, endpoint: str, data: dict = None) -> dict:
         return json_response
 
     def login(self):
-        response = requests.post("http://" + self.api_host + "/api/user/token/challenge", data={
+        response = self.session.post("http://" + self.api_host + "/api/user/token/challenge", data={
             "udid": self.udid
         })
 
@@ -72,7 +72,7 @@ def login(self):
 
         device_token = response.json()['devicetoken']
 
-        response = requests.post("http://" + self.api_host + "/api/user/token/response", data={
+        response = self.session.post("http://" + self.api_host + "/api/user/token/response", data={
             "login": self.username,
             "token": device_token,
             "udid": self.udid,
diff --git a/custom_components/alpha_innotec/gateway_api.py b/custom_components/alpha_innotec/gateway_api.py
index abce3c3..61c3a92 100644
--- a/custom_components/alpha_innotec/gateway_api.py
+++ b/custom_components/alpha_innotec/gateway_api.py
@@ -51,7 +51,7 @@ def call(self, endpoint: str, data: dict = None) -> dict:
 
             _LOGGER.debug("[%s] - body: %s", endpoint, urlencoded_body)
 
-            response = requests.post("http://{hostname}/{endpoint}".format(hostname=self.api_host, endpoint=endpoint),
+            response = self.session.post("http://{hostname}/{endpoint}".format(hostname=self.api_host, endpoint=endpoint),
                                      data=urlencoded_body,
                                      headers={'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'}
                                      )