I met this problem also: root@xxxxxx:~# neutron agent-list Connection to neutron failed: Maximum attempts reached Actually it would have same failure when run any neutron command. Neutron-server service is running. However it’s not listening port 9696. /var/log/neutron/server.log is empty. Any idea? root@xxxxxx:~# service neutron-server status neutron-server start/running, process 6926 root@xxxxxx:~# netstat -l |grep 9696 root@xxxxxx:~# telnet 127.0.0.1 9696 Trying 127.0.0.1... telnet: Unable to connect to remote host: Connection refused root@xxxxxx:~# tail /var/log/neutron/ dhcp-agent.log l3-agent.log metadata-agent.log dhcp-agent.log.1 l3-agent.log.1 server.log dhcp-agent.log.2.gz l3-agent.log.2.gz server.log.1 dhcp-agent.log.3.gz l3-agent.log.3.gz dhcp-agent.log.4.gz l3-agent.log.4.gz root@xxxxxx:~# tail /var/log/neutron/server.log root@xxxxxx:~# root@xxxxxx:~# service rabbitmq-server status Status of node rabbit@i2052247 ... [{pid,1779}, {running_applications,[{rabbit,"RabbitMQ","2.7.1"}, {os_mon,"CPO CXC 138 46","2.2.7"}, {sasl,"SASL CXC 138 11","2.1.10"}, {mnesia,"MNESIA CXC 138 12","4.5"}, {stdlib,"ERTS CXC 138 10","1.17.5"}, {kernel,"ERTS CXC 138 10","2.14.5"}]}, {os,{unix,linux}}, {erlang_version,"Erlang R14B04 (erts-5.8.5) [source] [64-bit] [rq:1] [async-threads:30] [kernel-poll:true]\n"}, {memory,[{total,26175728}, {processes,11653152}, {processes_used,11644440}, {system,14522576}, {atom,1124433}, {atom_used,1120215}, {binary,126024}, {code,11134393}, {ets,819856}]}, {vm_memory_high_watermark,0.3999999994248726}, {vm_memory_limit,417298841}] ...done. root@xxxxxx:~# neutron -v agent-list DEBUG: neutronclient.neutron.v2_0.agent.ListAgent get_data(Namespace(columns=[], fields=[], formatter='table', quote_mode='nonnumeric', request_format='json', show_details=False)) DEBUG: neutronclient.client REQ: curl -i http://10.246.52.247:5000/v2.0/tokens -X POST -H "Content-Type: application/json" -H "Accept: application/json" -H "User-Agent: python-neutronclient" -d '{"auth": {"tenantName": "admin", "passwordCredentials": {"username": "admin", "password": "admin_pass"}}}' DEBUG: neutronclient.client RESP:{'date': 'Fri, 18 Oct 2013 09:03:11 GMT', 'vary': 'X-Auth-Token', 'content-length': '6421', 'status': '200', 'content-type': 'application/json'} {"access": {"token": {"issued_at": "2013-10-18T09:03:11.702810", "expires": "2013-10-19T09:03:11Z", "id": "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-IMrmcCq9Ay8maNs1uJh5yMFQ1QSpddqVK55yEABGxAv4NNyYr0VMnDqRpaLHsg2YCM4ewjObYPlXMMKcjiY62ng6FBjwY2BZ6Pc4cpXW-SxXLxn9DZ8u4--K80uNxkOQ2AguobYpcDkvm7ZaaE7l6ktud35nScbaGitnqSBObW-3t5NoYpC9eIQYPKmTuII-7mRPBzTpkLEFrCaTq1M2ZKqFXpEqMCWaKQ0f49sPKg1HHqpSaKUTiRRjFNLmLLxo06iJ7oRDHgKvg+JR5j-P5yMhc2ZqdTIX31P+3AoPDDabR72XeYq8-ED", "tenant": {"description": null, "enabled": true, "id": "9e016235ce6244aaa18ba8d17c30352e", "name": "admin"}}, "serviceCatalog": [{"endpoints": [{"adminURL": "http://192.168.1.247:8774/v2/9e016235ce6244aaa18ba8d17c30352e", "region": "RegionOne", "internalURL": "http://192.168.1.247:8774/v2/9e016235ce6244aaa18ba8d17c30352e", "id": "0b3ec588cb964f0e802d265d1e2f2bd3", "publicURL": "http://10.246.52.247:8774/v2/9e016235ce6244aaa18ba8d17c30352e"}], "endpoints_links": [], "type": "compute", "name": "nova"}, {"endpoints": [{"adminURL": "http://192.168.1.247:9696/", "region": "RegionOne", "internalURL": "http://192.168.1.247:9696/", "id": "562a610b25d2470f9d09223028a9cca0", "publicURL": "http://10.246.52.247:9696/"}], "endpoints_links": [], "type": "network", "name": "neutron"}, {"endpoints": [{"adminURL": "http://192.168.1.247:9292/", "region": "RegionOne", "internalURL": "http://192.168.1.247:9292/", "id": "08531be6c271465e8f6a84c4b62da855", "publicURL": "http://10.246.52.247:9292/"}], "endpoints_links": [], "type": "image", "name": "glance"}, {"endpoints": [{"adminURL": "http://192.168.1.247:8776/v1/9e016235ce6244aaa18ba8d17c30352e", "region": "RegionOne", "internalURL": "http://192.168.1.247:8776/v1/9e016235ce6244aaa18ba8d17c30352e", "id": "12c6034d9a42481fab487ef97a421ddc", "publicURL": "http://10.246.52.247:8776/v1/9e016235ce6244aaa18ba8d17c30352e"}], "endpoints_links": [], "type": "volume", "name": "cinder"}, {"endpoints": [{"adminURL": "http://192.168.1.247:8773/services/Admin", "region": "RegionOne", "internalURL": "http://192.168.1.247:8773/services/Cloud", "id": "2d000e88f38f4de2a3b28475adca5440", "publicURL": "http://10.246.52.247:8773/services/Cloud"}], "endpoints_links": [], "type": "ec2", "name": "ec2"}, {"endpoints": [{"adminURL": "http://192.168.1.247:35357/v2.0", "region": "RegionOne", "internalURL": "http://192.168.1.247:5000/v2.0", "id": "0f1765b0c06a4853aa245deb0ad10f51", "publicURL": "http://10.246.52.247:5000/v2.0"}], "endpoints_links": [], "type": "identity", "name": "keystone"}], "user": {"username": "admin", "roles_links": [], "id": "6e247f0c0006404f918be53cd662a01b", "roles": [{"name": "admin"}, {"name": "KeystoneAdmin"}, {"name": "KeystoneServiceAdmin"}], "name": "admin"}, "metadata": {"is_admin": 0, "roles": ["48c78cf6f8c5490a9bd0facda6a10a27", "e7dc5a7126f8478a8c659c32b82b359f", "dcf2676ae91a49738fcf61991b5ac2cd"]}}} DEBUG: neutronclient.client REQ: curl -i http://10.246.52.247:9696/v2.0/agents.json -X GET -H "X-Auth-Token: MIILgQYJKoZIhvcNAQcCoIILcjCCC24CAQExCTAHBgUrDgMCGjCCCdcGCSqGSIb3DQEHAaCCCcgEggnEeyJhY2Nlc3MiOiB7InRva2VuIjogeyJpc3N1ZWRfYXQiOiAiMjAxMy0xMC0xOFQwOTowMzoxMS43MDI4MTAiLCAiZXhwaXJlcyI6ICIyMDEzLTEwLTE5VDA5OjAzOjExWiIsICJpZCI6ICJwbGFjZWhvbGRlciIsICJ0ZW5hbnQiOiB7ImRlc2NyaXB0aW9uIjogbnVsbCwgImVuYWJsZWQiOiB0cnVlLCAiaWQiOiAiOWUwMTYyMzVjZTYyNDRhYWExOGJhOGQxN2MzMDM1MmUiLCAibmFtZSI6ICJhZG1pbiJ9fSwgInNlcnZpY2VDYXRhbG9nIjogW3siZW5kcG9pbnRzIjogW3siYWRtaW5VUkwiOiAiaHR0cDovLzE5Mi4xNjguMS4yNDc6ODc3NC92Mi85ZTAxNjIzNWNlNjI0NGFhYTE4YmE4ZDE3YzMwMzUyZSIsICJyZWdpb24iOiAiUmVnaW9uT25lIiwgImludGVybmFsVVJMIjogImh0dHA6Ly8xOTIuMTY4LjEuMjQ3Ojg3NzQvdjIvOWUwMTYyMzVjZTYyNDRhYWExOGJhOGQxN2MzMDM1MmUiLCAiaWQiOiAiMGIzZWM1ODhjYjk2NGYwZTgwMmQyNjVkMWUyZjJiZDMiLCAicHVibGljVVJMIjogImh0dHA6Ly8xMC4yNDYuNTIuMjQ3Ojg3NzQvdjIvOWUwMTYyMzVjZTYyNDRhYWExOGJhOGQxN2MzMDM1MmUifV0sICJlbmRwb2ludHNfbGlua3MiOiBbXSwgInR5cGUiOiAiY29tcHV0ZSIsICJuYW1lIjogIm5vdmEifSwgeyJlbmRwb2ludHMiOiBbeyJhZG1pblVSTCI6ICJodHRwOi8vMTkyLjE2OC4xLjI0Nzo5Njk2LyIsICJyZWdpb24iOiAiUmVnaW9uT25lIiwgImludGVybmFsVVJMIjogImh0dHA6Ly8xOTIuMTY4LjEuMjQ3Ojk2OTYvIiwgImlkIjogIjU2MmE2MTBiMjVkMjQ3MGY5ZDA5MjIzMDI4YTljY2EwIiwgInB1YmxpY1VSTCI6ICJodHRwOi8vMTAuMjQ2LjUyLjI0Nzo5Njk2LyJ9XSwgImVuZHBvaW50c19saW5rcyI6IFtdLCAidHlwZSI6ICJuZXR3b3JrIiwgIm5hbWUiOiAibmV1dHJvbiJ9LCB7ImVuZHBvaW50cyI6IFt7ImFkbWluVVJMIjogImh0dHA6Ly8xOTIuMTY4LjEuMjQ3OjkyOTIvIiwgInJlZ2lvbiI6ICJSZWdpb25PbmUiLCAiaW50ZXJuYWxVUkwiOiAiaHR0cDovLzE5Mi4xNjguMS4yNDc6OTI5Mi8iLCAiaWQiOiAiMDg1MzFiZTZjMjcxNDY1ZThmNmE4NGM0YjYyZGE4NTUiLCAicHVibGljVVJMIjogImh0dHA6Ly8xMC4yNDYuNTIuMjQ3OjkyOTIvIn1dLCAiZW5kcG9pbnRzX2xpbmtzIjogW10sICJ0eXBlIjogImltYWdlIiwgIm5hbWUiOiAiZ2xhbmNlIn0sIHsiZW5kcG9pbnRzIjogW3siYWRtaW5VUkwiOiAiaHR0cDovLzE5Mi4xNjguMS4yNDc6ODc3Ni92MS85ZTAxNjIzNWNlNjI0NGFhYTE4YmE4ZDE3YzMwMzUyZSIsICJyZWdpb24iOiAiUmVnaW9uT25lIiwgImludGVybmFsVVJMIjogImh0dHA6Ly8xOTIuMTY4LjEuMjQ3Ojg3NzYvdjEvOWUwMTYyMzVjZTYyNDRhYWExOGJhOGQxN2MzMDM1MmUiLCAiaWQiOiAiMTJjNjAzNGQ5YTQyNDgxZmFiNDg3ZWY5N2E0MjFkZGMiLCAicHVibGljVVJMIjogImh0dHA6Ly8xMC4yNDYuNTIuMjQ3Ojg3NzYvdjEvOWUwMTYyMzVjZTYyNDRhYWExOGJhOGQxN2MzMDM1MmUifV0sICJlbmRwb2ludHNfbGlua3MiOiBbXSwgInR5cGUiOiAidm9sdW1lIiwgIm5hbWUiOiAiY2luZGVyIn0sIHsiZW5kcG9pbnRzIjogW3siYWRtaW5VUkwiOiAiaHR0cDovLzE5Mi4xNjguMS4yNDc6ODc3My9zZXJ2aWNlcy9BZG1pbiIsICJyZWdpb24iOiAiUmVnaW9uT25lIiwgImludGVybmFsVVJMIjogImh0dHA6Ly8xOTIuMTY4LjEuMjQ3Ojg3NzMvc2VydmljZXMvQ2xvdWQiLCAiaWQiOiAiMmQwMDBlODhmMzhmNGRlMmEzYjI4NDc1YWRjYTU0NDAiLCAicHVibGljVVJMIjogImh0dHA6Ly8xMC4yNDYuNTIuMjQ3Ojg3NzMvc2VydmljZXMvQ2xvdWQifV0sICJlbmRwb2ludHNfbGlua3MiOiBbXSwgInR5cGUiOiAiZWMyIiwgIm5hbWUiOiAiZWMyIn0sIHsiZW5kcG9pbnRzIjogW3siYWRtaW5VUkwiOiAiaHR0cDovLzE5Mi4xNjguMS4yNDc6MzUzNTcvdjIuMCIsICJyZWdpb24iOiAiUmVnaW9uT25lIiwgImludGVybmFsVVJMIjogImh0dHA6Ly8xOTIuMTY4LjEuMjQ3OjUwMDAvdjIuMCIsICJpZCI6ICIwZjE3NjViMGMwNmE0ODUzYWEyNDVkZWIwYWQxMGY1MSIsICJwdWJsaWNVUkwiOiAiaHR0cDovLzEwLjI0Ni41Mi4yNDc6NTAwMC92Mi4wIn1dLCAiZW5kcG9pbnRzX2xpbmtzIjogW10sICJ0eXBlIjogImlkZW50aXR5IiwgIm5hbWUiOiAia2V5c3RvbmUifV0sICJ1c2VyIjogeyJ1c2VybmFtZSI6ICJhZG1pbiIsICJyb2xlc19saW5rcyI6IFtdLCAiaWQiOiAiNmUyNDdmMGMwMDA2NDA0ZjkxOGJlNTNjZDY2MmEwMWIiLCAicm9sZXMiOiBbeyJuYW1lIjogImFkbWluIn0sIHsibmFtZSI6ICJLZXlzdG9uZUFkbWluIn0sIHsibmFtZSI6ICJLZXlzdG9uZVNlcnZpY2VBZG1pbiJ9XSwgIm5hbWUiOiAiYWRtaW4ifSwgIm1ldGFkYXRhIjogeyJpc19hZG1pbiI6IDAsICJyb2xlcyI6IFsiNDhjNzhjZjZmOGM1NDkwYTliZDBmYWNkYTZhMTBhMjciLCAiZTdkYzVhNzEyNmY4NDc4YThjNjU5YzMyYjgyYjM1OWYiLCAiZGNmMjY3NmFlOTFhNDk3MzhmY2Y2MTk5MWI1YWMyY2QiXX19fTGCAYEwggF9AgEBMFwwVzELMAkGA1UEBhMCVVMxDjAMBgNVBAgTBVVuc2V0MQ4wDAYDVQQHEwVVbnNldDEOMAwGA1UEChMFVW5zZXQxGDAWBgNVBAMTD3d3dy5leGFtcGxlLmNvbQIBATAHBgUrDgMCGjANBgkqhkiG9w0BAQEFAASCAQCC86X3OMOARFj4s0pjjMXVNlUnYeZ4-IMrmcCq9Ay8maNs1uJh5yMFQ1QSpddqVK55yEABGxAv4NNyYr0VMnDqRpaLHsg2YCM4ewjObYPlXMMKcjiY62ng6FBjwY2BZ6Pc4cpXW-SxXLxn9DZ8u4--K80uNxkOQ2AguobYpcDkvm7ZaaE7l6ktud35nScbaGitnqSBObW-3t5NoYpC9eIQYPKmTuII-7mRPBzTpkLEFrCaTq1M2ZKqFXpEqMCWaKQ0f49sPKg1HHqpSaKUTiRRjFNLmLLxo06iJ7oRDHgKvg+JR5j-P5yMhc2ZqdTIX31P+3AoPDDabR72XeYq8-ED" -H "Content-Type: application/json" -H "Accept: application/json" -H "User-Agent: python-neutronclient" ERROR: neutronclient.shell Connection to neutron failed: Maximum attempts reached DEBUG: neutronclient.shell clean_up ListAgent DEBUG: neutronclient.shell got an error: Connection to neutron failed: Maximum attempts reached root@i2052247:~#