Lots of fixes, but the big thing would be the removal of Python and switching to PHP for the relay server. The system is more more simple in that it does almost no processing of the data stream now; it only does a little bit of work to make sure it receives all 14 packets of FNDC data to constitute a complete dataset.
I've found this to be much more reliable and resilient to loss of internet etc. Additionally you don't need to know 3 languages to work with the project as it's all PHP and Javascript now.