Could not connect to the controller/invalid response from controller

[CommunityUser]

I installed PHP agent but I cannot get any stats in my controller. Account accesskey and accountname is set fine (I can see it in my php inof page). SSL is enabled. 

I get that message in my proxy log:
AD Thread Pool-Global0] 24 Aug 2015 15:53:28,301 WARN com.singularity.CONFIG.ConfigurationChannel - Could not connect to the controller/invalid response from controller, cannot get initialization information, controller host [paid138.saas.appdynamics.com], port[443], exception [Connection back off limitation in effect: /controller/instance/0/applicationConfiguration]
[AD Thread Pool-Global0] 24 Aug 2015 15:53:28,301 ERROR com.singularity.CONFIG.ConfigurationChannel - Exception: NULL

and tha tone in agent.log

2015-08-24 15:59:30.162 UTC INFO 12355 [config.ZMQConfigTransport] received config response, size: 11 bytes
2015-08-24 15:59:30.165 UTC ERROR 12355 [config.ConfigChannel] No agent identity in config response: currentVersion: 1440428247478
agentState: UNREGISTERED
timestampSkew: 0

I can connect just fine with the controller using:
telnet paid138.saas.appdynamics.com 443

[CommunityUser]

I am a new for Trial. I has the same problem. Can anyone help ? 

[CommunityUser]

Hi,

Which version of AppAgent are you using?

Once ago I had the same issue with the PHP Agent, and the problem was diagnosed as a bug, was corrected and Support Team sent to me a new version with the bug corrected, I installed it and everything gone OK.

The version I was using then was 4.2.0.0, this issue shouldn't be happening again, unless they'd lost the change (I don't know).

An advice, verify you have the file cacerts.jks in <agent-home>/conf directory, without this file and having SSL enabled, there won't be communication with Controller. (I'm attaching that file here)

Regards..

--

Álvaro Urbáez

[CommunityUser]

I've seen it too. Are your snapshots getting dropped?

[CommunityUser]

It seems nobody knows what is the root of this problem, I'm having a troubleshoting session this afternoon with someone from AppDynamics support.. I hope we can find the solution of this problem, if so, I will post it here, for the record.

Regards.

[CommunityUser]

Hi,

I'm having the exact same problem with java agents.

Is there any update on this problem?

Thanks

[CommunityUser]

was this problem ever resolved? Do you know the solution?