Cool [Q] Help Tethering not working

i m using LG d802 stock rom unrooted facing a issue in tethering any on the tethering not working for me it says dns not responding
i tried disabling firewall,changing dns manually google open dns but no change in issue any one can help

i also tried foxi fi and other app for tethering but still the same problem internet s working fine in mobile 3g vodafone connection

ip 192.168.43.243

gw -192.168.43.1
dns 192.168.43.1