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How to fix Parsec when it can't connect to host?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

A "parsec cannot connect to host" error occurs when the Parsec application is unable to connect to the remote host computer. This can be caused by a number of factors, including:

  • The host computer is turned off or not connected to the internet

  • The host computer's firewall is blocking the Parsec connection

  • The host computer is running an outdated version of Parsec

  • The host computer is using a VPN that is incompatible with Parsec

If you are receiving this error, we recommend checking each of the above factors to see if there is a solution.

Other common searches for this error include:

  • connection to the server failed with error code 6
  • parsec can't connect to host

1. Check if the host is online and accessible

  1. Open a command prompt and navigate to the directory where the parsec executable is stored.
  2. Type the following command to check if the parsec executable is available on the system: parsec -version If the parsec executable is not available on the system, you will need to install it. For more information, see the section How to install Parsec.
  3. If the parsec executable is available on the system, you can check if the host is online and accessible by typing the following command: ping -c 3 www.google.com If the host is online and accessible, the command will return a response containing the address of the website. If the host is not online or accessible, the command will return an error message.

2. If the host is behind a firewall, ensure that the appropriate ports are open

If the host is behind a firewall, ensure that the appropriate ports are open in order to fix parsec can't connect to host:

  1. On the host where parsec is installed, open a command prompt and change to the parsec directory.
  2. Type "parsec --help".
  3. Check the "Connecting to servers" section for the port number(s) that need to be opened.
  4. If the port number is not listed, then the port needs to be opened in the firewall.
  5. Type "parsec --connect".
  6. If the port is open, then the parsec command should be able to connect to the host. If not, then the port needs to be opened in the firewall.

3. Try connecting to the host using a different network

  1. Open a command prompt and change to the directory where the parsec executable is located.
  2. Type the following command to launch the parsec command-line tool. parsec
  3. Type the following command to display a list of available networks. network
  4. Type the following command to connect to the network specified in the list. parsec network <network>
  5. If the network is not accessible, parsec will attempt to connect to the host using a different network.
  6. If the connection to the host is still unsuccessful, parsec will display an error message.

4. Restart the Parsec application

  1. Log into the Parsec application on the server.
  2. Navigate to the "Settings" page.
  3. Click on the "Restart" button.
  4. The Parsec application will restart and should now be able to connect to the server.

5. Check for updates to the Parsec application

  1. Open the Parsec application on your computer.
  2. Click the "Help" button on the main toolbar.
  3. Click the "About" button.
  4. If the "Version" field says "1.3.3," you are up-to-date. If not, click the "Check for Updates" button.
  5. The Parsec application will check for updates and, if there are any, it will install them.

Some users might also have success with the following opitons:

  1. Delete and recreate the Parsec connection.