Problem connecting to arduino yun

I am able to see yun with ip address alloted according to home network connected via ethernet in port menu…

when uploaded “webclient sketch”
on com port[COM5(ARDUINO YUN)] it shows
Failed to configure Ethernet using DHCP
connecting…
connection failed
disconnecting.

when uploaded on port with ip address…it shows
Unable to connect: retrying (1)…
Unable to connect: retrying (2)…
Unable to connect: retrying (3)…
Unable to connect: retrying (4)…
Unable to connect: is the sketch using the bridge?

when i am uploading sketch via port with ip address…i cant see led’s blinking on rx,tx,13 as compared when uploading via com port even though i am asked password for uploading sketch…it mostly seems sketch is not uploaded to board when uploading via port with ip address…

please reply as soon as possible

please someone suggest how to overcome this problem as soon as possible...