Hi, iOS issues in my network aren't related with certs. I think it because TLS tunnel was established successful. I don' understand why it happens only iOS devices. Alan DeKok-2 <http://freeradius.1045715.n5.nabble.com/template/NamlServlet.jtp?macro=user_nodes&user=106330> wrote if I turned off session resumption. I've search in eap config about "session resumption" and I've find in "cache" block. To disable session resumption is only change attribute on "enable" field to "no" like example below? In my case this field "enable" is "yes". cache { # # Enable it. The default is "no". Deleting the entire "cache" # subsection also disables caching. # # You can disallow resumption for a particular user by adding the # following attribute to the control item list: # # Allow-Session-Resumption = No # # If "enable = no" below, you CANNOT enable resumption for just one # user by setting the above attribute to "yes". # #enable = yes enable = no Glad to your help,