Thanks for the detailed post @Paras0710.
But unfortunately its still not working...
Answers to your questions:-
First tell me how your stb is connected to your
router by Lan wire or through wifi? and if wifi what kind of wifi? i mean old lan wifi adapter or usb wifi dongle?
--> Router connected using wifi with the new usb wifi dongle.
when your box is connected to your router login to your router's UI and check attached devices option and see whether your stb is showing in attached device list..
--> Don't see any option like 'check attached devices' in the UI of the router...
now check if multicast is enabled in your routers setting
-> It was disabled, I enabled it...
check if router have any setting name "WMM (Wi-Fi Multimedia) settings" enables it.
-> No such setting..
on your stb goto organiser > system setting > ip diagnostics and see the last entry
--> it says Not Available..