@andren it seems like the StockTicker works as long as i keep requesting; as soon as I hold abreak for some minutes and try to request a new stock there will be no reponse. The menu still works fine!
It might be that the network throws the Tinylab due to inactivity. Any recommendation how to verify?
I thought to close the wifi connection after each request and reestablish with every request; but thats probably not straight fwd?