[chrisww]

Hello Chris,

I don't know what to say, I checked everything in more than one device.

When receiving by WiFi, device name is very important. Please double check this:
 

Code:

#define GETAQM_FROM_WIFI 1 // 0= No (means get it by RF if available), 1= Yes
const char* AQM_DeviceName = "AQM-DevK1"; // This must be the same name used for Device_ID on the Config_Options of the AQ Monitor software

Rgs
Werk_AG

I have tracked down the problem to this line in the config:
#define AQ_SOURCE       9  // 0= AQM Unit 0, 1= AQM Unit 1, 9 for not used - This seting have no effect if latter you select to get Air Quality data by WiFi

With  AQ_SOURCE to 0  everything works, even through I  always had it set to 9 in previous versions.
Chris.