First forgive me if there is already a topic out there for this problem. I searched and couldn't find anything.
We are a K-12 that has deployed AP-135's in every classroom throughout our secondary schools. I have Student, Staff Personal, Staff and Guest networks set up. Student, Staff personal and guest are all authenticated through separate captive portals agains a microsoft radius server. It seems that most are able to authenticate and access the network just fine. However I have a handful of students and staff that claim they can't access the captive portal page. This seems to be a mix of Apple and Android devices. Both are saying they connect to wireless just fine but they can't get the captive portal login page to show up. This is the captive portal built into the controller. We do NOT have CPPM yet but are looking into it.
Any suggestions?