Envisalink 4- Home Assistant 'NoneType' object has no attribute 'write' error Support

Hi y’all, I installed an Envisalink 4 today and having issues getting it integrated with Home Assistant. Here is my configuration yaml. I get the error ‘NoneType’ object has no attribute ‘write’. I’ve confirmed my username and password are correct as is the IP address (I can use the IP to configure the envisalink and user, user work to login to this page). Am I missing something?

envisalink:
      host: 192.168.68.78
      panel_type: HONEYWELL
      user_name: user
      password: user
      code: "7248"
      port: 4025
      evl_version: 4
      keepalive_interval: 60
      zonedump_interval: 30
      timeout: 10
      panic_type: Police
      zones:
        02:
          name: "FRONT DOOR"
          type: "opening"
      partitions:
        1:
          name: "Home Alarm"

Did you ever figure this out? I am having the exact same issue trying to integrate my Honeywell using Envisalink 4.

I can see the zones, but they are not updating when I open a door. When I attempt to arm I get the same error you do.