[Q] connect my lg d855 to my android tv via home share topic

I have an android tv (g-guard) v4.2.1 , and it has an important application called (HOME SHARE) . so when i search for devices into our wifi network i can see the list of those devices and my lg g3 mobile among them .. but when i press on its icon it asks me for username and password to login .. and i tried all possiblities to login without any use
how can i figure out those login information from my mobile