We have used 300 Mbps WiFi routers in B/N/G mode for campus wifi.
But the stuff is not working properly.
Need Suggestions...
What are your requirements?
What did you do to design and deploy your network to meet those requirements?
How does your network not meet your requirements?
Have you searched the web for common WiFi design and deployment mistakes, and ensured that you haven't accidentally made any of these mistakes?
Feel free to call us and we'll try to help you answer these questions...
http://www.cambiumnetworks.com/support/contact-support/
Choose option 2).
I hope this helps!
Dave