Basic Fixes

• Switch to 5GHz Wi-Fi: If you have a dual-band router, try switching to a 5GHz frequency band to get faster internet speeds.
• Force quit and relaunch Telegram: This will give the app a fresh start on your Mac or Windows PC.
• Update Telegram app: Install the latest version of the desktop app from the Mac App Store or Microsoft Store.

Fix 1: Check Microphone and Camera Settings

Next, look at the call settings in the Telegram Desktop app on your Mac or Windows PC. If your internet connection is strong and stable, there may be issues with your Mac’s Microphone or Webcam settings. Here’s how to check them.

Step 1: Open Telegram on your Mac or Windows PC.

Step 2: Go to Settings and click on General.

Step 5: Under Microphone, click on Default and check your audio source.

Fix 2: Check if Your Contact Has Allowed Video Calls

If you still can’t make Telegram video calls on your Mac, your contact may have restricted video calls from you and other contacts. Telegram allows you to restrict voice calls and voice messages as a part of its privacy settings.

Step 1: Open Telegram on your Mac or Windows PC > go to Settings.

Step 2: Click on Privacy and Security from the Settings menu.

Step 3: Under Privacy, click on Calls. Then, check whether you have allowed video calls from your contact.

Step 4: To remove a contact’s video call restriction, click on Never Allow under Who Can Call Me.

Step 5: Click on Edit > minus icon next to the contact name.

Step 6: Click on Done to confirm.

Fix 3: Run Windows Store App Troubleshooter

Running the Windows Store Apps troubleshooter on Windows 11 effectively solves issues with Telegram Desktop and other installed applications. It is a built-in tool for checking and fixing such issues with apps downloaded from the Microsoft Store.

Step 1: Open Settings > System > select Troubleshoot.

Step 2: Select Other Troubleshooter.

Step 3: Scroll down, click Run beside the Windows Store Apps troubleshooter, and wait a few seconds to let it resolve the problem.

Relaunch Telegram to check if the problem is solved.

Refer to our post if you see an Error Occurred While Loading the Troubleshooter on Windows 11.

Fix 4: Disable Low Data Mode or Metered Connection Over Wi-Fi

On Mac, you can disable the Low Data Mode (Mac) or Metered Connection (Windows 11) for your connected Wi-Fi network.

On Mac

Open Settings > Wi-Fi > click on Details next to your connected Wi-Fi network > disable Low Data Mode > click on OK.

On Windows 11

Open Settings > Network and internet > Wi-Fi > turn off Metered connection.

Fix 5: Repair and Reset Telegram App (Windows)

Another built-in tool to repair apps that can be used when such issues occur on your Windows 11 PC.

Step 1: Search Installed apps in the Windows search menu and click the associated system setting.

Step 2: Locate Telegram Desktop > click its three-dot menu > select Advanced options.

Step 3: Scroll down and click Repair. If repairing doesn’t solve the issue, click Reset and follow the on-screen instructions.

Note: Resetting the Telegram Desktop app will clear all its data.