Having deployed the last of 8 x NX5500 Express Manager Controllers in a multi-site deployment in October 2017 Extreme Networks have made them obsolescent as of April 2018. Should the customer require just 1 new additional access point it will not able to be managed by the NX5500Express Managers. Is this not just morally wrong but also potentially a very damaging decision by Extreme to not provide a reasonable migration path for systems that are stil under warranty?