During the recording NeoLoad has a one minute timeout if a request has been sent and no response from the server after that time.

Is it a normal behavior to not get any response after so long time?

Note that this timeout is not specific to Ajax call but all the requests.

If needed you can increase that timeout but you have to make sure that you will really get a response from the server.

Here is the procedure:

1. Stop NeoLoad
2. Edit <install_dir>\conf\controller.properties
3. Go to [Recorder] section
4. Increase the timeout value for this key (in milliseconds):
   
   controller.recorder.so.timeout=60000
   
   
5. Save
6. Restart NeoLoad
7. Try again your recording

How much have you increased that value?

Plus if it still does not work then maybe for any reason it's the connection that is taking time. Try to increase the other keys like this two ones still under [Recorder] section:

controller.recorder.client.so.timeout=600
controller.recorder.connection.timeout=600000

I added an extra zero to the default values.

Also when you record in NeoLoad do you see your AJAX call recorded. If yes, what is the server response content stored in NeoLoad?