@avtolstoy unfortunately need to inform you that I picked up another breaking change from DeviceOS 1.4.4 to 1.5.0-rc.1.
This regime worked fine under DeviceOS 1.4.4, but is broken when running DeviceOS 1.5.0-rc.1 (noting that the binary had to be compiled for target DeviceOS 1.4.4 as per Updating from DeviceOS 1.4.4 to 1.5.0-rc.1 -> SOS Panic 1).
The outcome is that in SoftAP mode, the device does not respond to pings and hence it a browser cannot connect to the web service on port 80.
This could be due to:
- the SPI issue you mentioned, and/or
- increased memory usage of the updated DeviceOS??? SoftAP is sensitive to this.