I followed the implementation of google home local fulfillment from https://github.com/actions-on-google/smart-home-local. No change has been made, stock version of git implementation. Discovery is set to UDP scan. While Google home sends out broadcast periodically and local device manager returns response, google home replies with ICMP port unreachable.
This worked previsouly correctly but for a few months now, it does not. I am on the lastest preview version of Google home FW 309385, Cast ver. 1.56.309385.
Has any one experinced anything like this?