Hello I'm working on Audi Q3 year 2023 mqb add key I connected to car sucessfuly I have Apb300 programmer I have read the the original key data but when autel upload IMO calculation data it show me a error message Http server error Switch your network and retry error code:20504 I have good internet connection I wan to know is autel server work on suterday

Tags: error , code:20504