diff --git a/gui/src/aaregui/widgets/login.py b/gui/src/aaregui/widgets/login.py
index 7faa1169..4712f5a2 100644
--- a/gui/src/aaregui/widgets/login.py
+++ b/gui/src/aaregui/widgets/login.py
@@ -20,6 +20,7 @@ class LoginDialog(QDialog):
         self.setStyleSheet("background-color: rgb(216, 228, 253);")
         self.__base_url = base_url
         self.__reply = None
+        self.__network_manager = None
 
         # Layout
         layout = QVBoxLayout(self)
@@ -53,7 +54,7 @@ class LoginDialog(QDialog):
                                    pgroups=["p16371", "p22233"])
             self.token = jwt.encode(token_data.model_dump(), "ABC123")
             self.accept()
-        network_manager = QNetworkAccessManager(self)
+        self.__network_manager = QNetworkAccessManager(self)
         request = QNetworkRequest(QUrl(f"{self.__base_url}/token"))
         request.setHeader(QNetworkRequest.KnownHeaders.ContentTypeHeader, "application/x-www-form-urlencoded")
 
@@ -61,7 +62,7 @@ class LoginDialog(QDialog):
         payload.addQueryItem("username", f"{self.name_entry.text()}")
         payload.addQueryItem("password", "")
         payload_string = payload.toString()
-        self.__reply = network_manager.post(request, QByteArray.fromStdString(payload_string))
+        self.__reply = self.__network_manager.post(request, QByteArray.fromStdString(payload_string))
         self.__reply.finished.connect(self.handle_token_response)