Hi ritesh13
I had a similar problem recently with IP address not showing. This is what I did , ignore homeplug steps if you do not have them
I unplugged all the home plugs
unplugged the router
waited 5 minutes
Plugged the router back in
plugged the homeplugs in one by one and paired them and all devices sprang back into life
Hope this helps
Ok from start
Are u getting green and yellow lights at back of box where net cable plugs in? If not remove cable for 15 secs. If still no good leave box on.
Repeatedly reboot router and each time do network test on box until u get it. Its ur router not giving an io to box not vice versa