It is important to manage expectations. A firmware update cannot change the hardware limits of the .
The hardware gets a 6/10, but the optimized firmware bumps the usability up to a 7/10. If you own an IB-WRB303N gathering dust in a drawer due to connectivity issues, flash the latest firmware—it might just get it working again as a reliable backup or guest network router. 300m wireless-n broadband router ib-wrb303n firmware update