I got 99 problems but my WiFi ain't one

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Velocio in reply to @NotThamesWater

Looking a bit further, I think it might be because the pi is not able to get an address from DHCP, and is giving itself an address. Which I never knew was a thing.

Happens if network is down in some way that prevents DHCP. Can either be total network failure, or some soft thing like the network not permitting the DHCP request even though connected.

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NotThamesWater in reply to @Velocio

I think having the controller on a different subnet was making things go a bit off.

I seem to be back up and running. i've given the pi a static IP and put it on the same subnet, but DHCP seems to work for most other things now.

Although, for some reason, I had to configure the controller from scratch - I think that touching a file on the boot partition of the sd card must wipe out something on the rootfs

Must learn to backup more...

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