LAN Messenger Instant messaging client

Frequently Asked Questions

How do I change my nickname?
Open the Preferences windows, go to Account section and enter the nickname in the field marked 'User name as seen by contacts'. Remember that your user name is the only way your contacts can identify you, so changing it often is probably not a good idea.

Others are not able to read my user name! They only see weird characters
This occurs when you have entered a nickname that contains characters from a language that is not available on your contact's computer. Unfortunately there is nothing LAN Messenger can do about it. Either your contacts should add support for the language or you should use a language that is available for everyone.

How do I change my avatar picture?
Click on your avatar image in the top right region of the main window. A menu will open up listing all the availabe avatars that you can select. You can set custom avatar by clicking on "Browse for more pictures" and selecting an image.

I am not able to see any contacts
Make sure you are connected to your local network and that no firewall is blocking LAN Messenger from connecting to the network. On Windows, LAN Messenger automatically takes care of the system firewall. If you are using a third party software, or you are running LAN Messenger on another platform, you may need to check this manually.

For more information on firewalls, read this article.

I did all the above, but I still can't see any contacts
In order to see others on your network, all of you must be using the same network settings. Open the Preferences window, go to Network section and verify that this is the case. Its best to use the default values if you are not sure about what you are doing. In case the values have been changed and you want to reset to defaults, read the following question.

How do I reset settings to default value?
If you want to reset your settings, open the Preferences window and click the "Reset Preferences" button and select "Yes" when prompted.

You can also run LAN Messenger from a console with the "/noconfig" switch. The path of the application depends on where you installed LAN Messenger.

  • Linux / Unix: lmc /noconfig
  • Windows: C:\Program Files\LAN Messenger\lmc /noconfig
  • Mac OS X: open /Applications/ --args /noconfig

If LAN Messenger was already running it would reload the default settings. Otherwise the program will start with default settings.

Where does LAN Messenger store its config file?
Config files are created on a per user basis (there is no global config file). You can edit the config file for fine tuning LAN Messenger's behaviour. The location of this file depends on the operating system you are running:

  • Linux / Unix: $HOME/.config/lmc/lmc.ini
  • Windows XP/2000: C:\Documents and Settings\%username%\Application Data\LAN Messenger\LAN Messenger.ini
  • Windows Vista/7: C:\Users\%username%\AppData\Roaming\LAN Messenger\LAN Messenger.ini
  • Mac OS X: $HOME/.config/lmc/lmc.ini

If you make a mistake while editing the config file, just delete it and restart LAN Messenger. The default settings will be loaded. Alternatively you can make a backup copy of the config file before editing it.

What is broadcast address, UDP port, TCP port etc.
Broadcast address is used for network wide communications. You can edit it to include a smaller subnet. UDP and TC ports are communication endpoints used to identify a specific address. Follow these links to know more.

Broadcast address
TCP and UDP port