google cast - Chromecast sender application error when requesting new session -

i have unpublished custom receiver app, , unable cast web player sender app in chrome. receiver "available" message upon initialization of cast api, when click on cast button in player , select chromecast device drop down menu in extension, tv screen goes black , few seconds later onerror method called following error:

{code: "channel_error", description: "error: timeout", details: null} 

the casting works fine when using default media receiver. also, not see network traffic coming chromecast device in server console log, means chromecast not fetching receiver application.

i made sure of following:

• the chromecast dongle registered cast receiver device in cast developer console.
• my macbook has nodejs server running serve receiver application , "receiver application url" in cast developer console correctly pointing server running on macbook.
• the chromecast , macbook both on same network, valid 192.168.x.x ip addresses.

i found thread discussing error chromecast sample sender application casthellotext-chrome ends error when trying session, suggestions provided there dont seem apply situation.

i able resolve particular error restarting chromecast device. tried on 2 separate occasions , both times issue went away once device restarted. can't explain how worked, did job. if can explain cause of particular error , why restarting fixes it, accept answer.