hii .. thank you for your reply, I updated the firmware(through file provided by tp link via email). but problem worsened. Now even 192.168.1.1 is not opening.

Model: TD W8968Hardware Version: V4Firmware Version: 1.0.5 Build 150504 Rel. 57027ISP : From the past 2 months, there is some problem with the modem... Third light from the left (internet access...