No response from "turtlebot" pc

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Hi, i have been following this tutorial http://wiki.ros.org/turtlebot/Tutoria...

But after editing my .bashrc according to the tutorial on both pcs like this:

Desktop PC:

export ROS_MASTER_URI=http://192.168.1.150:11311

export ROS_HOSTNAME=192.168.1.107

Laptop PC:

export ROS_MASTER_URI=http://localhost:11311

export ROS_HOSTNAME=192.168.1.150

I am not able to get any sort of communication between the two PCs. For instance, when i run roscore from the laptop (192.168.1.150) and rostopic list from my desktop (192.168.1.107), my desktop PC has no response at all. The same the other way around (even if i change the .bashrc ofc). I am using vmware on both PCs with a bridged connection that "replicates host pc connection", dont know if that has anything to do with it. I can ping the PCs with each other.