MSFS simconnect broken, maybe, AFCBridge Failure, others

I thought at first my issue was just AFCBridge for the honeycomb throttle quadrant, it errors with  AFCBridge Failed to Initialize SimConnectToTheLine

Running it manually, after loaded, same error.

Voltanta says cant connect to the sim, other apps also say this, a few do work though, strangely (maybe not using simconnect?)

I have the latest fsuipc.. i've reinstalled (uninstalled/reinstalled msfs), started with the fresh localcache folder etc too.

This os may be buggered.. i did a new motherboard, things were ok, then i had to do a system restore before that point, so i reinstalled drivers and did all that again, then later just today reinstalled msfs to get around this simconnect issue.

I have a clean community folder and base scenery only to troubleshoot.
Out of ideas short of starting with a fresh re-install of windows, but that seems extreme.

The simconnect file is using defaults, :

 <SimConnect.Comm>
        <Descr>Static IP4 port</Descr>
        <Protocol>IPv4</Protocol>
        <Scope>local</Scope>
        <Port>500</Port>
        <MaxClients>64</MaxClients>
        <MaxRecvSize>41088</MaxRecvSize>
    </SimConnect.Comm>
 

The dynamic one is port 0.

I want to say this had 127.0.0.1 before i wiped it though, on one of the lines.

Anyone have any thoughts of things to try?