# Cant Connect to Q Ground Control after SDK Update

Source: https://forum.modalai.com/topic/3632/cant-connect-to-q-ground-control-after-sdk-update
Category: Development Drones (https://forum.modalai.com/category/44/development-drones)
Tags: m500
Posted: 2024-07-11 15:01:39 UTC by Samuel Bryan
Replies: 2 · Views: 1200

## Samuel Bryan · 2024-07-11 15:01:39 UTC

I recently updated the Voxl SDK on my Modal M500 from 0.9.5 to 1.2.0, and now the aircraft won't connect to Q Ground Control.  When I open Q Ground Control, it says disconnected. The aircraft still connects to my laptop via wifi and I can SSH into the aircraft from a terminal.

## Reply by Eric Katzfey (ModalAI staff) · 2024-07-11 15:38:01 UTC

@Samuel-Bryan Are you using SoftAP mode in WiFi (e.g. The drone WiFi is the access point) or are you using station mode (e.g. where your laptop and drone connect to an external router)?

## Reply by Samuel Bryan · 2024-07-11 18:55:47 UTC (in reply to Eric Katzfey)

@Eric-Katzfey I am using SoftAP mode in Wifi.