diff --git a/netwerk/test/unit/xpcshell.ini b/netwerk/test/unit/xpcshell.ini
index 7e697ef44ddb..853d54db8cbc 100644
--- a/netwerk/test/unit/xpcshell.ini
+++ b/netwerk/test/unit/xpcshell.ini
@@ -345,6 +345,8 @@ skip-if = os != "win"
 [test_trr_ttl.js]
 [test_synthesized_response.js]
 [test_udp_multicast.js]
+skip-if = 
+  win10_2004 # Bug 1742311
 [test_redirect_history.js]
 [test_reply_without_content_type.js]
 [test_websocket_offline.js]