1) Web API:

In order to enable Web API Control mode;

1. Click Tools menu.

2. Select Option.

3. From the option menu go to "Web API".

4. From the right menu please enable the "Web API" control mode.

5. Click "OK" button.

The Address should be added to firewall exceptions. 

Open command line as admin mode and run this command:

netsh http add urlacl url=[address] user=everyone

for example:

netsh http add urlacl url=http://10.7.10.70:3006/ user=everyone

More information

2) Telnet:

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