diff --git a/cura/OAuth2/AuthorizationHelpers.py b/cura/OAuth2/AuthorizationHelpers.py
index 8224e7b51f..f4a29962a4 100644
--- a/cura/OAuth2/AuthorizationHelpers.py
+++ b/cura/OAuth2/AuthorizationHelpers.py
@@ -41,7 +41,10 @@ class AuthorizationHelpers:
             "code_verifier": verification_code,
             "scope": self._settings.CLIENT_SCOPES if self._settings.CLIENT_SCOPES is not None else "",
             }
-        return self.parseTokenResponse(requests.post(self._token_url, data = data))  # type: ignore
+        try:
+            return self.parseTokenResponse(requests.post(self._token_url, data = data))  # type: ignore
+        except requests.exceptions.ConnectionError:
+            return AuthenticationResponse(success=False, err_message="Unable to connect to remote server")
 
     ##  Request the access token from the authorization server using a refresh token.
     #   \param refresh_token:
@@ -54,7 +57,10 @@ class AuthorizationHelpers:
             "refresh_token": refresh_token,
             "scope": self._settings.CLIENT_SCOPES if self._settings.CLIENT_SCOPES is not None else "",
         }
-        return self.parseTokenResponse(requests.post(self._token_url, data = data))  # type: ignore
+        try:
+            return self.parseTokenResponse(requests.post(self._token_url, data = data))  # type: ignore
+        except requests.exceptions.ConnectionError:
+            return AuthenticationResponse(success=False, err_message="Unable to connect to remote server")
 
     @staticmethod
     ##  Parse the token response from the authorization server into an AuthenticationResponse object.
diff --git a/cura/OAuth2/AuthorizationService.py b/cura/OAuth2/AuthorizationService.py
index e8b9405ecd..a4214ee958 100644
--- a/cura/OAuth2/AuthorizationService.py
+++ b/cura/OAuth2/AuthorizationService.py
@@ -119,8 +119,12 @@ class AuthorizationService:
         if self._auth_data is None or self._auth_data.refresh_token is None:
             Logger.log("w", "Unable to refresh access token, since there is no refresh token.")
             return
-        self._storeAuthData(self._auth_helpers.getAccessTokenUsingRefreshToken(self._auth_data.refresh_token))
-        self.onAuthStateChanged.emit(logged_in = True)
+        response = self._auth_helpers.getAccessTokenUsingRefreshToken(self._auth_data.refresh_token)
+        if response.success:
+            self._storeAuthData(response)
+            self.onAuthStateChanged.emit(logged_in = True)
+        else:
+            self.onAuthStateChanged(logged_in = False)
 
     ##  Delete the authentication data that we have stored locally (eg; logout)
     def deleteAuthData(self) -> None: