Raspi as Access Point without Internet - can't connect via PuTTY

[fraeri]

Hello together,
I'm recently working on a RaspberryPi Project operating on my drone and giving the flight controller some commands.

An important part is to connect my PC with the raspberry in the field.
The plan is to access the drone with VNC and/or SSH in near distance with the WiFi from the Pi.

I already managed to create an access point on the Pi3 with the following guide:
‪https://www.raspberrypi.org/documentati ... s-point.md


Now the tricky part (at least for me):
When the Pi is connected to the Internet via Ethernet, it is creating a WiFi-Signal and the world is good. I can connect with the Pi-WiFi and access SSH and VNC (RealVNC or RemoteDesktop).
But when I disconnect the Ethernet cable and reboot the raspberry I still can't connect to the WiFi, but not accessing SSH or VNC.
I am not quite sure what I am missing there.

Can anyone help?

[Avro125]

I'm assuming you're trying to connect to your Pi via Wi-Fi with a laptop while in the field? And this is to manage the Pi or do work on it?

I briefly read the instructions that you followed. My first thought is that if set up the Pi as an access point in bridge mode sharing out some other type of connection (Pi shares the Ethernet at home through its Wi-Fi) then there's a router assigning IP addresses, etc. through DHCP. The connections are bridged, so Laptop <wireless> Pi <Ethernet> DHCP/Router <ISP> Internet

If you remove that cable, then the AP is still there and broadcasting, but there's nothing on the other end to give your laptop an IP address. So, you'll be able to 'connect' to your WiFi signal, but there'll be nothing else for the laptop to see. You'd likely have to take it out of bridge mode and set static IPs on the Pi and on your laptop.

Just a thought.