How to choose the default data network in FreePBX?

Question

freepbx

Hello! Mastering a virtual PBX. In general, there are 2 networks 192.168.0.0/24 (1) and 10.40.5.0/22 ​​(2).
1st network has Internet access.

The 2nd local area network of the workstation is located without access to the Internet.

The automatic telephone exchange is lifted on VM, it is connected by two network interface cards.
Tubes will stand and 1 and 2 networks.
When network 2 is connected, Internet access is lost.
And moreover, the web muzzle does not load if you close the tab and reopen it.
How to make network 1 become the main one for transferring data to the Internet, and network 2 only for handsets?
I'm just saying I'm a newbie!
Thank you for understanding, all the best)