diff --git a/src/tribler/core/components/libtorrent/download_manager/download_manager.py b/src/tribler/core/components/libtorrent/download_manager/download_manager.py
index 06620faf6b0..36d9772a0f8 100644
--- a/src/tribler/core/components/libtorrent/download_manager/download_manager.py
+++ b/src/tribler/core/components/libtorrent/download_manager/download_manager.py
@@ -8,11 +8,11 @@
 import os
 import time as timemod
 from asyncio import CancelledError, gather, iscoroutine, shield, sleep, wait_for
-from binascii import unhexlify
 from copy import deepcopy
 from shutil import rmtree
-from typing import Callable, Dict, List, Optional
+from typing import Callable, Dict, List, Optional, Tuple
 
+from binascii import unhexlify
 from ipv8.taskmanager import TaskManager
 
 from tribler.core import notifications
@@ -362,7 +362,7 @@ def get_session(self, hops=0):
 
         return self.ltsessions[hops]
 
-    def set_proxy_settings(self, ltsession, ptype, server=None, auth=None):
+    def set_proxy_settings(self, ltsession, ptype, server: Optional[Tuple] = None, auth: Optional[List] = None):
         """
         Apply the proxy settings to a libtorrent session. This mechanism changed significantly in libtorrent 1.1.0.
         """
@@ -370,9 +370,17 @@ def set_proxy_settings(self, ltsession, ptype, server=None, auth=None):
         settings["proxy_type"] = ptype
         settings["proxy_hostnames"] = True
         settings["proxy_peer_connections"] = True
-        if server and server[0] and server[1]:
-            settings["proxy_hostname"] = server[0]
-            settings["proxy_port"] = int(server[1])
+        if server:
+            proxy_port = None
+
+            try:
+                proxy_port = int(server[1])
+            except ValueError as e:
+                self._logger.exception(e)
+
+            if server[0] and proxy_port:
+                settings["proxy_hostname"] = server[0]
+                settings["proxy_port"] = proxy_port
         if auth:
             settings["proxy_username"] = auth[0]
             settings["proxy_password"] = auth[1]
diff --git a/src/tribler/core/components/libtorrent/tests/test_download_manager.py b/src/tribler/core/components/libtorrent/tests/test_download_manager.py
index c7f8c24f56a..2cae0d3d1ad 100644
--- a/src/tribler/core/components/libtorrent/tests/test_download_manager.py
+++ b/src/tribler/core/components/libtorrent/tests/test_download_manager.py
@@ -1,5 +1,4 @@
 import asyncio
-import functools
 import itertools
 from asyncio import Future
 from unittest.mock import AsyncMock, MagicMock, Mock
@@ -575,3 +574,27 @@ def test_update_trackers_list_append(fake_dlmgr) -> None:
     actual_trackers = set(itertools.chain.from_iterable(tracker_list))
     assert actual_trackers == {fake_tracker1, fake_tracker2}
 
+
+def test_set_proxy_settings_invalid_port(fake_dlmgr):
+    # Test setting the proxy settings for an invalid port number. In this case port and host should not be set.
+    session = Mock()
+    proxy_type = 2
+
+    fake_dlmgr.set_proxy_settings(session, proxy_type, ('host name', 'invalid port'))
+
+    settings, = session.method_calls[-1].args
+    assert 'proxy_port' not in settings
+    assert 'proxy_hostname' not in settings
+    assert settings['proxy_type'] == proxy_type
+
+
+def test_set_proxy_defaults(fake_dlmgr):
+    # Test setting the proxy settings with default values
+    session = Mock()
+    proxy_type = 2
+
+    fake_dlmgr.set_proxy_settings(session, proxy_type)
+    settings, = session.method_calls[-1].args
+    assert 'proxy_port' not in settings
+    assert 'proxy_hostname' not in settings
+    assert settings['proxy_type'] == proxy_type