[roddyp]

Yes, I see the same thing. It's because the WU_Upload function in net.ino is not compiled due to a #if, but it's still being called.

I think the fix would be to modify Routines.ino from this...

Code:

     if ( Enable_Internet == 1 && Enable_WUupload == 1 && localMinute % WUupload_period == 0)
      {
        WU_upload();
      }  

... to this (untested!)...

Code:

      #if (Enable_Internet == 1) && (Enable_WUupload == 1)
       if (localMinute % WUupload_period == 0)
        {
          WU_upload();
       }  
     #endif

It's C 'best practice' to use upper-case names for preprocessor defines, so it's easier to spot them. e.g ENABLE_INTERNET, ENABLE_WU_UPLOAD.