Junos Pulse Crashing on El Capitan (10.11), Causing Keychain Issues? Whenever I attempt to start a VPN Connection with Junos Pulse (Version 5.0.11) on El Capitan it freezes midway through connecting and my login keychain becomes inaccessible to any other apps. The only way I've found to restore my keychain and restart Pulse is to restart. Killing Junos Pulse and the PulseTray processes in Activity Monitor seems to have no effect.
I had the exact same issue. Basically, this happens only if you enable the checkbox "Save Settings" at the username/password prompt in Junos Pulse. If you do not enable this checkbox, it should not freeze at the next connection attempt.
Pulsesecure have released the software version 5.1R5.1 build 61437, where this issue has been fixed (I tested it today and it is working fine). I hope this helps.