Hi; When I Lunch new instance there is an error ins logs as following: ##### Oct 14 06:00:25 overcloud-controller-0 cinder-api[27185]: 2015-10-14 06:00:25.332 27232 ERROR cinder.api.middleware.fault [req-e0e7a1f4-6caf-422e-ace1-381d87a85b11 9664b863bbba4ff4a1bf5936ce2202c2 a1572260d6f14c4a8f0e1a209eeeb7b4 - - -] Caught error: Authorization failed: Unable to establish connection to http://localhost:5000/v3/auth/tokens ###### instance disk image can't be attached so the instance don't get boot from disk... I change glance api version on cinder.conf into 1 and restart all cinder services but do not help to overcome the problem. I have deployed overcloud via TripleO good known Trunk undercloud.... Sincerely, Ali R. Taleghani @linkedIn <http://ir.linkedin.com/in/taleghani>