Discord Voice Channel Shows RTC Connecting Only: Fix

When you try to join a voice channel in Discord, you may see the status stuck on “RTC Connecting” instead of a green connection indicator. This means your client cannot establish a Real-Time Communication link with Discord’s servers. The issue is almost always caused by network restrictions, a misconfigured VPN, or corrupted local voice settings. This article explains why RTC Connecting happens and provides a complete set of fixes to get your voice working again.

Why Discord Shows RTC Connecting When Joining a Voice Channel

RTC stands for Real-Time Communication. Discord uses the UDP protocol on ports 50000 through 65535 to transmit voice data. When your client cannot reach these ports, it displays “RTC Connecting” indefinitely. The three most common root causes are:

Network Restrictions Blocking UDP Ports

Corporate networks, school Wi-Fi, or some home routers block UDP traffic. Discord’s voice system relies on UDP for low-latency audio. If UDP packets are dropped, the client cannot complete the handshake with Discord’s voice servers. The client then falls back to TCP, which often results in the RTC Connecting state.

VPN, Proxy, or Third-Party Interference

VPNs and proxies reroute your traffic through a different server. Many VPNs do not support UDP forwarding correctly, or they add latency that causes the connection to time out. Some antivirus software also blocks Discord’s voice traffic, mistaking it for a potential threat.

Corrupted Discord Voice Cache

Discord stores temporary voice settings and connection data in a local cache. If this cache becomes corrupted due to a crash, update error, or disk permission issue, the client cannot establish a new RTC connection. Resetting the voice settings clears this corrupted data.

Steps to Fix RTC Connecting on Discord Voice Channels

Apply the fixes in the order shown below. Test your voice connection after each step before moving to the next.

Method 1: Reset Voice Settings in Discord

1. Open User Settings
   Click the gear icon (User Settings) at the bottom-left of the Discord window, next to your username.
2. Go to Voice & Video
   In the left sidebar under App Settings, click Voice & Video.
3. Click Reset Voice Settings
   Scroll to the bottom of the Voice & Video settings page. Click the Reset Voice Settings button. A confirmation dialog appears. Click Okay. Discord will restart automatically.
4. Rejoin the Voice Channel
   After Discord restarts, join the same voice channel. The RTC Connecting message should disappear within a few seconds.

Method 2: Allow Discord Through Windows Firewall

1. Open Windows Firewall Settings
   Press the Windows key, type Firewall, and select Allow an app through Windows Firewall from the search results.
2. Find Discord in the List
   Scroll the list of allowed apps and features. Locate Discord. If Discord is not listed, click Change settings, then Allow another app, browse to C:\Users\YourUsername\AppData\Local\Discord\app-1.0.9003\Discord.exe (the version number may differ), and click Add.
3. Check Both Private and Public
   Ensure both the Private and Public checkboxes are selected for Discord. Click OK to save changes.
4. Restart Discord
   Close Discord completely using Task Manager (Ctrl+Shift+Esc, find Discord, right-click, End task). Relaunch Discord and test the voice channel.

Method 3: Disable VPN, Proxy, or Antivirus Interference

1. Turn Off Your VPN
   Right-click your VPN client icon in the system tray and select Disconnect or Quit. Do not just pause the connection — fully exit the VPN application.
2. Disable Windows Proxy
   Press the Windows key, type Proxy settings, and open the result. Under Manual proxy setup, turn off Use a proxy server. If you need a proxy for other work, add Discord to your proxy bypass list (use the address discord.com and all subdomains).
3. Check Antivirus Exceptions
   Open your antivirus software (Windows Defender, Norton, McAfee, etc.). Find the firewall or network protection settings. Add Discord.exe as an exception. Refer to your antivirus documentation for exact steps.
4. Test Without Antivirus Temporarily
   If you are unsure about the exception, temporarily disable the antivirus real-time protection. Join a voice channel. If it works, re-enable the antivirus and configure the exception properly.

Method 4: Change Discord Voice Server Region

1. Open Server Settings
   Right-click your server name in the server list and select Server Settings from the context menu.
2. Go to Overview
   In the left sidebar, click Overview.
3. Change Server Region
   Under Server Region, click the dropdown menu and select a region closer to your physical location. For example, if you are in the United States, choose US East or US West. Click Save Changes.
4. Rejoin the Voice Channel
   Return to your server, join the voice channel, and check if the RTC Connecting status clears.

If Discord Still Shows RTC Connecting After the Main Fix

Some users face persistent RTC Connecting issues even after trying all standard fixes. Below are three additional scenarios and their specific solutions.

Voice Works on Mobile but Not on Desktop

This indicates a desktop-specific problem. Try the following:

• Clear Discord Cache: Close Discord. Press Windows+R, type %appdata%\discord, and press Enter. Delete the Cache, Code Cache, and GPUCache folders. Restart Discord.
• Reinstall Discord: Uninstall Discord from Control Panel > Programs and Features. Download the latest installer from the Discord website and install it.

RTC Connecting Only on One Specific Server

The server’s voice region may be far away or overloaded. As a server owner or admin, change the server region as described in Method 4. If you are not an admin, ask the server owner to change the region. Another cause is the server being temporarily blocked in your region due to network routing issues — wait 30 minutes and try again.

Discord Voice Works After Restarting Router

If a router restart temporarily fixes RTC Connecting, your router’s NAT table is likely full or misconfigured. To prevent this, enable UPnP (Universal Plug and Play) in your router settings. UPnP allows Discord to automatically open the required UDP ports. Consult your router manual for UPnP configuration steps.

Discord RTC Connection Methods: UDP vs TCP vs Relay

Item	UDP Direct	TCP Fallback	Relay (Discord Server)
Description	Direct peer-to-peer voice data transmission using UDP protocol	Voice data sent over TCP when UDP is blocked	Voice routed through a Discord relay server
Latency	Lowest (under 50 ms)	Moderate (100-200 ms)	Higher (150-300 ms)
Ports used	50000-65535 UDP	443 TCP (HTTPS)	50000-65535 UDP or 443 TCP
When used	Default for all voice channels	When UDP is blocked by firewall	When direct P2P fails (NAT issues)
RTC Connecting likely?	No	Yes, if TCP handshake fails	Yes, if relay server is unreachable

Understanding these methods helps you identify the root cause. If you see RTC Connecting, Discord is unable to establish any of these three connection types. The fixes in this article address the most common blockers for all three methods.

You can now resolve the RTC Connecting error by resetting voice settings, adjusting firewall rules, disabling VPNs, or changing the server region. Start with the simplest fix — resetting voice settings — and move down the list only if the problem persists. As an advanced tip, if you frequently encounter RTC Connecting, configure a static IP address for your computer in your router’s DHCP settings to prevent NAT table conflicts.