Many Discord users often encounter the RTC Connecting error, which disrupts smooth communication on the platform. This error occurs when Discord can’t connect to its servers through Real-Time Chat (RTC). It can happen for different reasons, like network issues or software glitches. The good news is there are steps you can take to fix this Discord error and get back to chatting without interruptions.
This article discusses what causes RTC connecting Discord errors and eight methods to help you fix the issue.
Below we have discussed:
Also read: Discord video not loading: Quick Fix
What causes RTC connecting Discord error?
Eight reasons might be causing the RTC connecting Discord error, and we have mentioned them below:
- Unstable internet connection.
- Temporary system glitch
- VPN doesn’t support UDP.
- Outdated network driver.
- Incorrect DNS settings.
- DNS cache causing issues.
- QOS settings might be interfering with the router.
- Audio subsystem settings might be causing issues.
How to fix the issue?
Here are eight ways to fix the RTC connecting error:
Check your Internet connection
The RTC Connecting error may occur due to unstable or slow internet connections. Make sure your internet connection is stable, and if possible, try switching to a different network. Restarting your router can also help refresh the connection.
Restart your device
Sometimes, the problem may be temporary glitches in the Discord application or your device. Close Discord completely, restart your device and then relaunch Discord to see if the error resolves.
Disable VPN
While a VPN can improve your internet experience, it changes your IP address, which might not work smoothly with Discord. But if your VPN supports UDP (User Datagram Protocol), Discord tends to work fine. UDP helps create a faster connection by reducing delays when sharing data compared to TCP (Transmission Control Protocol).
If your VPN doesn’t support UDP, it’s better to uninstall it and reboot your system before launching Discord again.

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Update your Network driver
Outdated or corrupted network drivers can cause connectivity issues, including the RTC Connecting error in Discord. To update your network drivers:
Step 1: Press the Windows+X and tap on the Device Manager option in the dropdown menu.

Step 2: Double-click on the Network adaptors to expand it, and right-click on your network adapter. Then, in the dropdown menu, click on the Update driver.

Step 3: Select Search automatically for drivers, and Windows will automatically find and install available updates.

Change your DNS
DNS (Domain Name System) links URLs to their IP addresses. When you type a website into your browser, it lets you use understandable words and phrases instead of strings of numbers. If you are having trouble with RTC Connecting on Discord, switching your DNS to a popular one like Google’s or Cloudflare’s could solve the problem.
Check out our article to learn how to change the DNS settings in Windows
Clear DNS cache
Flushing your DNS cache might help in resolving network-related issues. To flush DNS, follow the steps below:
Step 1: Type Cmd in the Windows search and click on the first result.

Step 2: Type in the command ipconfig /flushdns and hit Enter to reset DNS settings to default.

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Disable QOS (Quality of Service) in Discord
QOS directly communicates to the router, which might cause the RTC connecting error; disabling QOS settings from your Discord account might fix the issue. Here are the steps to do that:
Step 1: Open the Discord app on your device and click on the Settings (Gear) icon available beside your username at the bottom of the screen.

Step 2: In the sidebar, click on the Voice & Video option.

Step 3: Now, on the right side, scroll down, find Enable Quality of Service High Packet Priority and turn the toggle off beside it.

Step 4: Restart the Discord and check if the issue is resolved.
Change the Audio Subsystem in Discord
Many users fixed the RTC Connecting issue by changing the Audio Subsystem settings to Legacy. To do that, follow the steps below:
Step 1: Open the Discord app on your device and click on the Settings (Gear) icon available beside your username at the bottom of the screen.

Step 2: In the sidebar, click on the Voice & Video option.

Step 3: On the right side, scroll down, find Audio Subsystem, then click on the dropdown menu and then choose the Legacy option.
