Software⏱️ 3 min read📅 2026-06-19

How to Fix: x11vnc | ssvnc 'ReadExact: Socket error while reading'

x11vnc | ssvnc ReadExact Socket error while reading

Quick Answer: Check the encryption level and ensure it is set to 0 for a successful connection.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. 🚀 How to Resolve This Issue
  3. ✨ Wrapping Up

The error 'ReadExact: Socket error while reading' occurs when attempting to connect to an x11vnc server using SSVNC, but not when connecting with TightVNC. This issue affects users who are trying to use SSVNC with encryption enabled on their Windows system.

This error can be frustrating for users as it prevents them from accessing the remote desktop connection. In this troubleshooting guide, we will walk through the steps to resolve this issue and regain access to your remote desktop.

⚠️ Common Causes

  • The primary cause of this error is related to the encryption setting in x11vnc. When encryption is enabled (encryption = 1), SSVNC has difficulty establishing a secure connection, resulting in the 'ReadExact: Socket error while reading' error.
  • Another possible cause could be issues with the Docker container configuration or the network settings on your Windows system.

🚀 How to Resolve This Issue

Updating x11vnc and SSVNC to latest versions

  1. Step 1: Update x11vnc to the latest version by running the command `sudo apt-get update && sudo apt-get upgrade` inside the Docker container.
  2. Step 2: Update SSVNC to the latest version by downloading the latest zip file from the official website and extracting it to a location of your choice.
  3. Step 3: Copy the extracted SSVNC executable to the same location as x11vnc in the Docker container.

Configuring network settings for the Docker container

  1. Step 1: Check the Docker container's network settings by running the command `docker inspect -f '{{.NetworkSettings.IPAddress}}' ` inside a new terminal window.
  2. Step 2: If the IP address is not in the expected format (e.g., '10.0.2.15'), try updating the Docker container's network configuration by modifying the `docker-compose.yml` file or running `docker run -it --net=none --ip=10.0.2.15 `.

✨ Wrapping Up

To resolve the 'ReadExact: Socket error while reading' error, try updating x11vnc and SSVNC to their latest versions or configuring the network settings for your Docker container. If issues persist, consider seeking further assistance from a system administrator or IT professional.

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