Kibana cannot access Elasticsearch

I installed Kibana and elasticsearch version 5.5.3 on the same server. I was able to install both of them and access them on their respective ports. But, I would like to see monitoring so, I tried to install x-pack 5.5.3 on Kibana and Elasticsearch. After that kibana was not able to access Elasticsearch.

When I checked kibana.stderr logs, I see:

Unhandled rejection [illegal_argument_exception] No endpoint or operation is available at [_xpack] :: {"path":"/_xpack","statusCode":400,"response":"{"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"No endpoint or operation is available at [_xpack]"}],"type":"illegal_argument_exception","reason":"No endpoint or operation is available at [_xpack]"},"status":400}"}
at respond (/usr/share/kibana/node_modules/elasticsearch/src/lib/transport.js:295:15)
at checkRespForFailure (/usr/share/kibana/node_modules/elasticsearch/src/lib/transport.js:254:7)
at HttpConnector. (/usr/share/kibana/node_modules/elasticsearch/src/lib/connectors/http.js:159:7)
at IncomingMessage.bound (/usr/share/kibana/node_modules/elasticsearch/node_modules/lodash/dist/lodash.js:729:21)
at emitNone (events.js:91:20)
at IncomingMessage.emit (events.js:185:7)
at endReadableNT (_stream_readable.js:974:12)
at _combinedTickCallback (internal/process/next_tick.js:80:11)
at process._tickDomainCallback (internal/process/next_tick.js:128:9)
Unhandled rejection Error: No Living connections
at sendReqWithConnection (/usr/share/kibana/node_modules/elasticsearch/src/lib/transport.js:213:15)
at next (/usr/share/kibana/node_modules/elasticsearch/src/lib/connection_pool.js:213:7)
at _combinedTickCallback (internal/process/next_tick.js:73:7)
at process._tickDomainCallback (internal/process/next_tick.js:128:9)
Unhandled rejection Error: No Living connections
at sendReqWithConnection (/usr/share/kibana/node_modules/elasticsearch/src/lib/transport.js:213:15)
at next (/usr/share/kibana/node_modules/elasticsearch/src/lib/connection_pool.js:213:7)
at _combinedTickCallback (internal/process/next_tick.js:73:7)
at process._tickDomainCallback (internal/process/next_tick.js:128:9)
Unhandled rejection Error: No Living connections
at sendReqWithConnection (/usr/share/kibana/node_modules/elasticsearch/src/lib/transport.js:213:15)
at next (/usr/share/kibana/node_modules/elasticsearch/src/lib/connection_pool.js:213:7)
at _combinedTickCallback (internal/process/next_tick.js:73:7)
at process._tickDomainCallback (internal/process/next_tick.js:128:9)
Unhandled rejection Error: No Living connections
at sendReqWithConnection (/usr/share/kibana/node_modules/elasticsearch/src/lib/transport.js:213:15)
at next (/usr/share/kibana/node_modules/elasticsearch/src/lib/connection_pool.js:213:7)
at _combinedTickCallback (internal/process/next_tick.js:73:7)
at process._tickDomainCallback (internal/process/next_tick.js:128:9)
Unhandled rejection Error: No Living connections
at sendReqWithConnection (/usr/share/kibana/node_modules/elasticsearch/src/lib/transport.js:213:15)
at next (/usr/share/kibana/node_modules/elasticsearch/src/lib/connection_pool.js:213:7)
at _combinedTickCallback (internal/process/next_tick.js:73:7)
at process._tickDomainCallback (internal/process/next_tick.js:128:9)
Unhandled rejection Error: No Living connections
at sendReqWithConnection (/usr/share/kibana/node_modules/elasticsearch/src/lib/transport.js:213:15)
at next (/usr/share/kibana/node_modules/elasticsearch/src/lib/connection_pool.js:213:7)
at _combinedTickCallback (internal/process/next_tick.js:73:7)
at process._tickDomainCallback (internal/process/next_tick.js:128:9)

Can anyone help me?

This is how my Kibana landing page looks like:

It doesn't look like X-Pack is actually installed on your ES cluster.

Is it possible that the install failed? or that you haven't restarted the cluster after the install?

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