How To Fix Exchanging Encryption Keys on Telegram 2023

You may have come across an “exchanging encryption keys” prompt on Telegram while making a call and got stuck. Well, In this post, I will share with you how to fix exchanging encryption keys on Telegram.

In today’s world of instant messaging and social media, privacy and security are increasingly important concerns. Telegram, a popular messaging app, offers end-to-end encryption for its Secret Chats, which ensures that messages can only be read by the intended recipients. 

This encryption is achieved through the process of “Exchanging Encryption Keys”, which is a crucial step in establishing a secure connection between two users in a Secret Chat.

Exchanging encryption keys on Telegram

Exchanging Encryption Keys on Telegram is the process by which two devices establish a secure connection and exchange keys that will be used to encrypt and decrypt messages during communication. 

This process happens automatically in the background when you use Telegram to send messages or make calls.

When two devices start communicating on Telegram, they exchange public keys that are used to encrypt messages. These public keys are unique to each device and are shared only between the two devices. 

Once the public keys are exchanged, the devices generate a shared secret key that is used to encrypt and decrypt messages during communication. This shared secret key is never transmitted over the network and is only known to the two devices.

The process of exchanging encryption keys is an important security feature that ensures the confidentiality of the communication on Telegram. 

By using encryption, the messages are protected from being intercepted or read by anyone who may be listening in on the communication. This makes Telegram a secure and private messaging app that is trusted by millions of users around the world.

What does it mean when a Telegram call gets stuck at exchanging encryption keys?

When a Telegram call is stuck at “Exchanging Encryption Keys”, it means that the devices involved in the Telegram calls are attempting to establish a secure connection by exchanging encryption keys, but the process is not completed successfully. This can happen due to various reasons.

Reasons your call may be stuck at exchanging encryption keys

1. Poor or unstable network connection: A weak or unstable network connection can cause the devices to have difficulty exchanging encryption keys.

2. Outdated or incompatible versions of Telegram: If one of the devices has an outdated or incompatible version of Telegram, it may not be able to properly exchange encryption keys with the other device.

3. Incorrect date and time settings: Incorrect date and time settings on one or both devices can also cause issues with exchanging encryption keys.

4. Issues with the devices themselves: Sometimes, issues with the devices themselves, such as a low battery or software glitches, can cause problems with exchanging encryption keys.


Encryption key exchange is an important security feature of Telegram, so if you are experiencing issues with it, it’s best to take precautions and try to resolve the issue as soon as possible.

What to do when a Telegram call gets stuck exchanging encryption keys 

If your Telegram call is stuck at “Exchanging Encryption Keys”, here are some steps you can try to fix the issue:

1. Check your internet connection: Ensure that you have a stable and reliable internet connection. Weak or intermittent connectivity can disrupt the exchange of encryption keys during a call.

If you are on a Wi-Fi network, try switching to a different network or using your mobile data. Sometimes issues with the encryption key exchange can be caused by network settings.

2. Restart the call: Try ending the call and starting it again. This can sometimes help with the encryption key exchange issues.

Additionally, you may also close the Telegram app and reopen it to see if it resolves the issue.

3. Update Telegram: Make sure you have the latest version of Telegram installed on your device. You can check for updates on your app store or Google Play Store. Just search for the Telegram app then click the update button.

4. Check your phone’s time and date settings: Make sure that your phone’s time and date settings are correct. Incorrect settings can cause issues with encryption key exchange.

5. Clear app cache: If the above steps don’t work, try clearing the app cache. To do this go to Settings > Apps & Notifications > App Info > Telegram > Storage > Clear cache.

Phone Settings and select Apps and notifications
Select App info
Select Telegram
Select storage
select the Clear cache option

6. Contact Telegram Support: If none of the above steps works, you can contact Telegram support for assistance. They may be able to provide more specific guidance on resolving the issue.


It’s important to note that exchanging encryption keys can take some time, especially if you’re starting a Secret Chat for the first time with a particular contact. You may need to wait a few minutes for the keys to be exchanged successfully.

Exchanging Encryption Keys FAQs

Q. How long does it take for Telegram to exchange encryption keys?

A. The time it takes to exchange encryption keys can vary depending on various factors such as the strength of your internet connection, the load on Telegram’s servers, and the processing power of your device. In most cases, it should take only a few seconds to a minute or two to complete.

Q. Can I cancel the process of exchanging encryption keys in Telegram?

A. No, once the process of exchanging encryption keys has started, you cannot cancel it. You will need to wait for the process to complete, which usually takes only a few seconds to a few minutes.

Q. What happens if the process of exchanging encryption keys fails in Telegram?

A. If the process of exchanging encryption keys fails, it could be due to a poor internet connection or an issue with Telegram’s servers. Try restarting the app or your device, switching between Wi-Fi and mobile data, or waiting for a few minutes and trying again later. If the issue persists, contact Telegram support for further assistance.


In summary, the process of Exchanging Encryption Keys is essential for establishing a secure connection for voice or video calls in Telegram, and it ensures that the call is encrypted and protected from unauthorized access. But if your Telegram call is stuck at “Exchanging Encryption Keys,” you can try troubleshooting with the above steps.

For any comments, questions, or suggestions, please use the comments box below. Remember to subscribe to my Youtube channel and newsletter for more tips and tutorials.

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Grace is an Editor at GoTechUG and she has written many articles about website design and social media. She has experience in IT and loves to tinker with anything to do with computers. In her spare time, she loves music, movies, reading books, and learning Spanish.

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