I am unable to connect to internet plz help
How you have writed this post?
Surely with all deails provided, one user can suggest you the solution… 
Seriously:
If you can ping 8.8.8.8 form pc, you miss to config the DNS
From my dsl connected to pc port
cant ping 8.8.8.8 my cable connected to RB750 but can ping directly connected to pc port
Did i miss something to post?
O, it’s a joke. But with only one picture how you think to solve problem?
if you put
:put [:resolve www.google.com]
on terminal, what are the results?
But it was working before plz see this thread
http://forum.mikrotik.com/t/mikrotik-rb750-2-wan-dynamic-ip-unable-to-load-balance/77553/1
From the picture, the settings look correct…
That being said, I’ve had better luck adding the local subnet to the NAT rule and not using the out interface setting.
Also, make sure that you have the network settings (network, subnet, gateway, dns) entered in the DHCP server → Networks tab. I caught an IP typo I made in DHCP Networks before that stopped NAT/internet access.
Thanks working now