when car is running, can't connect ecu with laptop

[elijen]

after last 2 updates i can't connect ecu with laptop, when car is running, when car is off, sometimes i can connect, but mostly no...
i am from europe, use eu model ecu, pra-e13, hondata kpro v3, usb drivers are ok, kmanager is online, but it won't connect, usb error...
before updates, it was working fine

[Spunkster]

Are you using resistor or non-resistor type spark plugs?

[elijen]

i am using ngk laser iridium, it says it is resistor spark plug, and grams 550cc injectors, it was all fine, before last two updates...
after update, i had to reupload map, and that was ok, but when engine started, then the problems start

[Spunkster]

What is the serial number that is on the K-Pro board inside the ECU?

From Help, About, what is the version of software you are using?

[elijen]

sn is 12395, software was 4.5.5.0, now it has new update, 4.5.6.0, i will do this update, but for now i can't check anything, because my engine blow up :(
i will try with stock engine when it's ready