diff --git a/api/ovdashboard_api/core/settings.py b/api/ovdashboard_api/core/settings.py
index e361a96..35181a5 100644
--- a/api/ovdashboard_api/core/settings.py
+++ b/api/ovdashboard_api/core/settings.py
@@ -50,7 +50,7 @@ class WebDAVSettings(DAVSettings):
     username: str = "ovd_user"
     password: str = "password"
 
-    config_filename: str = "config.toml"
+    config_filename: str = "config.txt"
 
     disable_check: bool = False
     retries: int = 20
diff --git a/api/ovdashboard_api/core/webdav.py b/api/ovdashboard_api/core/webdav.py
index fdaed1d..6e71eac 100644
--- a/api/ovdashboard_api/core/webdav.py
+++ b/api/ovdashboard_api/core/webdav.py
@@ -5,6 +5,7 @@ from io import BytesIO
 from asyncify import asyncify
 from cache import AsyncTTL
 from cache.key import KEY
+from requests import Response
 from webdav3.client import Client as WebDAVclient
 
 from .settings import SETTINGS
@@ -13,7 +14,24 @@ _logger = logging.getLogger(__name__)
 
 
 class WebDAV:
-    _webdav_client = WebDAVclient(
+    class __WebDAVclient(WebDAVclient):
+        def execute_request(
+            self,
+            action,
+            path,
+            data=None,
+            headers_ext=None,
+        ) -> Response:
+            res = super().execute_request(action, path, data, headers_ext)
+
+            # the "Content-Length" header can randomly be missing on txt files,
+            # this should fix that (probably serverside bug)
+            if action == "download" and "Content-Length" not in res.headers:
+                res.headers["Content-Length"] = str(len(res.text))
+
+            return res
+
+    _webdav_client = __WebDAVclient(
         {
             "webdav_hostname": SETTINGS.webdav.url,
             "webdav_login": SETTINGS.webdav.username,
@@ -72,7 +90,8 @@ class WebDAV:
 
         _logger.debug(f"read_bytes {path!r}")
         buffer = BytesIO()
-        await asyncify(cls._webdav_client.resource(path).write_to)(buffer)
+        await asyncify(cls._webdav_client.download_from)(buffer, path)
+        buffer.seek(0)
 
         return buffer.read()
 
@@ -92,7 +111,7 @@ class WebDAV:
         """
 
         _logger.debug(f"write_bytes {path!r}")
-        await asyncify(cls._webdav_client.resource(path).read_from)(buffer)
+        await asyncify(cls._webdav_client.upload_to)(buffer, path)
 
         try:
             # hack: zugehörigen Cache-Eintrag entfernen