When go to pair with other player about the game of the PS4 platform, it is work with loading the pair program. But the pair program is auto to stop the program and cannot pair with other player to play the game after choosing the pair program.
I am sorry to hear that you are experiencing connectivity issues in The Division 2.
Can you please these connectivity troubleshooting steps.
If the issue persists, could you please submit a support ticket and attach an image of your port settings on your router and our Customer Support team will investigate this further for you.