Why do I get license errors with the Deadline Render Farm Manager?

UPDATE: It is recommended to use the Maxon App license method, but if you are running into license issues with the Maxon App, using the Maxon Account license method could help. 
Before testing the Maxon Account license method, please ensure you are using the latest version of the Maxon App. You can download the latest version of the Maxon App here.

If you are getting licensing errors with the command line renderer in Deadline, it could be that your Commandline Render for Cinema 4D has no licensing set up.
 

To set up licensing, start the command line exe / app manually in the console without any render commands attached: (please note the Maxon App option is only available for R25 and newer)

Error running authentication: No License Model defined [license_impl.cpp(129)]
----
Enter the license method:
  1) Maxon App  
  2) Maxon Account
  3) Maxon License Server
  4) RLM
  Q) Quit
Please select:

Choose the licensing method you want to use, and type in what's asked (license server connections / MyMaxon credentials). This must only be set up once. For MyMaxon, it might require a re-login if our terms and conditions change, though.

This will store your MyMaxon password in clear text, which is not secure and risky in many scenarios:

Open the config.txt (not the config.c4dpy.txt) with Notepad running as administrator (if you try to open it with Notepad, not as admin, it will not overwrite the current config.txt file and ask you to make a copy)

Scroll to the bottom of the config.txt file and type in:
g_licenseUsername="YourMyMaxonEmailAddress" (must be in quotes)
g_licensePassword=YourMyMaxonPassword (the password does not have quotes)

Similarly, for RLM, you could use g_licenseServerRLM="[servername]:[port]" *note that quotation marks are required to save the config.txt. This will bypass the license manager and the need to enter which account you are using in the command prompt and automatically log you in.

This will store your MyMaxon password in clear text, which is not secure and risky in many scenarios:

Open the config.txt (not the config.c4dpy.txt) with Notepad running as administrator (if you try to open it with Notepad, not as admin, it will not overwrite the current config.txt file and ask you to make a copy)

Scroll to the bottom of the config.txt file and type in:
g_licenseUsername="YourMyMaxonEmailAddress" (must be in quotes)
g_licensePassword=YourMyMaxonPassword (the password does not have quotes)
g_hideAccountMode=False
 

Similarly, for RLM, you could use g_licenseServerRLM="[servername]:[port]" *note that quotation marks are required to save the config.txt. This will bypass the license manager and the need to enter which account you are using in the command prompt and automatically log you in.