[HELP] I always get error 203 when I run ota-start

[whoobee]

Describe the issue:

What are you running wire-pod on?

• [OS]: Windows / Debian
• [Hardware]: Windows PC / Raspberry-Pi

I had it a long time ago set-up as dev/OSKR but then I switched back to a production build.
To be honest, I did this a long time ago, and I don't remember what were the last steps I did on the bot.
I can see that my bot has the following FW: v0.9.0-087cafe_os0.9.0-4ee03ec-202010021627

When I've tried all the things below, I always cleared the cache from the robot and also put it into development mode (kept the button on the back pressed for 15s)

• I've tried setting up the wire-bot on both windows and debian (raspberry-pi)
• I've set-up the wire-bot as both the OSKR and Production bot configuration
• On the automatic set-up I am able to connect to WiFi but when I start the update I get the exclamation mark on the vector screen like the OTA update failed
• I've also done the steps to update the bot from a local http server (configured on my windows host machine) and this is how I see that I always get the 203 error code
• When I've started the OTA, I used the local IP (not localhost of course) and I can see that vector is trying to connect for about 5 minutes and after that I get the 203 error (so it is not immediately)
  
• Once connected to WiFi, I can ping the Vector from my windows PC, so I know the connection is available
• I also tried the internal AP of Vector, and connected my PC directly to vector's AP and tried this way, but again I get the 203 error
  
• as a different step I also tried the ddl vector-ble application, but again the same result, when I try to do the OTA update I get 203 :(
• I even tested with the dev unlock OTA image which I got custom from DDL as part of my OSKR request

Am I missing a step here, has anyone have experienced something similar?
Any help is very appreciated