From f054ca2f0312e31d8d620bb5f5b1766d9e6ee4f0 Mon Sep 17 00:00:00 2001
From: 2meito <74376924+2meito@users.noreply.github.com>
Date: Mon, 20 Jul 2026 21:06:29 -0400
Subject: [PATCH] Add setting for WebRTCIPHandlingPolicy (#1283)

Co-authored-by: Zylanx <32674125+Zylanx@users.noreply.github.com>
---
 src/main/index.ts                             | 12 ++++++
 src/renderer/components/settings/Settings.tsx |  6 ++-
 .../settings/WebRTCIPHandlingPolicyPicker.tsx | 42 +++++++++++++++++++
 src/shared/settings.d.ts                      |  5 +++
 4 files changed, 64 insertions(+), 1 deletion(-)
 create mode 100644 src/renderer/components/settings/WebRTCIPHandlingPolicyPicker.tsx

diff --git a/src/main/index.ts b/src/main/index.ts
index 2f4c399..0c81512 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -158,3 +158,15 @@ app.on("open-url", (_, url) => {
 app.on("window-all-closed", () => {
     if (process.platform !== "darwin") app.quit();
 });
+
+// Sets the WebRTC IP handling policy for all current and future windows.
+// Switching to "default_public_and_private_interfaces" may fix calls stuck at "DTLS Connecting" when using VPNs, Tailscale, etc.
+// https://github.com/Vencord/Vesktop/issues/876
+app.on("web-contents-created", (_event, contents) => {
+    contents.setWebRTCIPHandlingPolicy(Settings.store.webRTCIPHandlingPolicy ?? "default");
+});
+Settings.addChangeListener("webRTCIPHandlingPolicy", () => {
+    for (const win of BrowserWindow.getAllWindows()) {
+        win.webContents.setWebRTCIPHandlingPolicy(Settings.store.webRTCIPHandlingPolicy ?? "default");
+    }
+});
diff --git a/src/renderer/components/settings/Settings.tsx b/src/renderer/components/settings/Settings.tsx
index 82a58db..e0d0b0d 100644
--- a/src/renderer/components/settings/Settings.tsx
+++ b/src/renderer/components/settings/Settings.tsx
@@ -9,6 +9,7 @@ import "./settings.css";
 import { classNameFactory } from "@vencord/types/api/Styles";
 import { BaseText, Divider, ErrorBoundary } from "@vencord/types/components";
 import { ComponentType } from "react";
+import { WebRTCIPHandlingPolicyPicker } from "renderer/components/settings/WebRTCIPHandlingPolicyPicker";
 import { Settings, useSettings } from "renderer/settings";
 import { isMac, isWindows } from "renderer/utils";
 
@@ -146,8 +147,11 @@ const SettingsOptions: Record<string, Array<BooleanSetting | SettingsComponent>>
             title: "Open Links in app (experimental)",
             description: "Opens links in a new Vesktop window instead of your web browser",
             defaultValue: false
-        }
+        },
+
+        WebRTCIPHandlingPolicyPicker
     ],
+
     "Developer Options": [DeveloperOptionsButton]
 };
 
diff --git a/src/renderer/components/settings/WebRTCIPHandlingPolicyPicker.tsx b/src/renderer/components/settings/WebRTCIPHandlingPolicyPicker.tsx
new file mode 100644
index 0000000..533dde0
--- /dev/null
+++ b/src/renderer/components/settings/WebRTCIPHandlingPolicyPicker.tsx
@@ -0,0 +1,42 @@
+/*
+ * Vesktop, a desktop app aiming to give you a snappier Discord Experience
+ * Copyright (c) 2023 Vendicated and Vencord contributors
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+import { Heading, Margins, Paragraph } from "@vencord/types/components";
+import { Select } from "@vencord/types/webpack/common";
+
+import { SimpleErrorBoundary } from "../SimpleErrorBoundary";
+import { SettingsComponent } from "./Settings";
+
+export const WebRTCIPHandlingPolicyPicker: SettingsComponent = ({ settings }) => {
+    return (
+        <SimpleErrorBoundary>
+            <div>
+                <Heading tag="h5">WebRTC IP Handling Policy</Heading>
+                <Paragraph className={Margins.bottom8}>
+                    Changing this may help with voice connection issues on some networks, most notably VPNs like
+                    Tailscale.
+                </Paragraph>
+                <Select
+                    placeholder="Default"
+                    options={[
+                        { label: "Default", value: "default", default: true },
+                        { label: "Default Public Interface Only", value: "default_public_interface_only" },
+
+                        {
+                            label: "Default Public And Private Interfaces",
+                            value: "default_public_and_private_interfaces"
+                        },
+                        { label: "Disable Non-Proxied UDP", value: "disable_non_proxied_udp" }
+                    ]}
+                    closeOnSelect={true}
+                    select={v => (settings.webRTCIPHandlingPolicy = v)}
+                    isSelected={v => v === (settings.webRTCIPHandlingPolicy ?? "default")}
+                    serialize={s => s}
+                />
+            </div>
+        </SimpleErrorBoundary>
+    );
+};
diff --git a/src/shared/settings.d.ts b/src/shared/settings.d.ts
index 5b8fd6f..b127f6d 100644
--- a/src/shared/settings.d.ts
+++ b/src/shared/settings.d.ts
@@ -9,6 +9,11 @@ import type { Rectangle } from "electron";
 export interface Settings {
     discordBranch?: "stable" | "canary" | "ptb";
     transparencyOption?: "none" | "mica" | "tabbed" | "acrylic";
+    webRTCIPHandlingPolicy?:
+        | "default"
+        | "default_public_interface_only"
+        | "default_public_and_private_interfaces"
+        | "disable_non_proxied_udp";
     tray?: boolean;
     minimizeToTray?: boolean;
     autoStartMinimized?: boolean;