Hi Shaun,
I am sorry you are having problems with LINKPlanner, we have processed over 400 profile requests so far today on V4.3.2, so I am not aware of any issues. Can you please test your network connection under Options - Network Settings - Test Network Settings and your Path Profile service under Options - Path Profile - Test profile service, just to make sure that everything is fine from that end.
You may find our Knowledge Base article on Obtaining Path Profiles useful if you have a problem with either of the above tests http://community.cambiumnetworks.com/t5/LINKPlanner-FAQ/How-to-Obtain-Path-Profiles/m-p/38869#U38869
In the meantime if you would like to send your project to linkplanner.ptp@cambiumnetworks.com we will populate the profiles for you, whilst we work out what the issue is.
Regards,
Rachel