# Talk to server... ERROR Connection marked as failed because the onConnect callback failed: invalid license found, requires a basic or a valid trial l icense and received Open sour **URL:** \ **Category:** Elasticsearch\ **Created:** [December 6, 2019, 3:01pm UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910 "2019-12-06T15:01:08Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 6, 2019, 3:01pm UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/1 "2019-12-06T15:01:08Z")
Hi, I am still facing this license problem to one of my ELK nodes. ``` elasticsearch: http://itkvmxh01.emea.nsn-net.net:9200... parse url... OK connection... parse host... OK dns lookup... OK addresses: 151.98.17.61 dial up... OK TLS... WARN secure connection disabled talk to server... ERROR Connection marked as failed because the onConnect callback failed: invalid license found, requires a basic or a valid trial l icense and received Open source ``` talk to server... ERROR Connection marked as failed because the onConnect callback failed: invalid license found, requires a basic or a valid trial l icense and received Open source. This is the repo that i have installed the elasticsearc on the node: ``` [elasticsearch-7.x] name=Elastic repository for 7.x packages baseurl=https://artifacts.elastic.co/packages/7.x/yum gpgcheck=1 gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch enabled=1 autorefresh=1 type=rpm-md ``` And here is my elasticsearch.yml file. # ======================== Elasticsearch Configuration ========================= # # NOTE: Elasticsearch comes with reasonable defaults for most settings. # Before you set out to tweak and tune the configuration, make sure you # understand what are you trying to accomplish and the consequences. # # The primary way of configuring a node is via this file. This template lists # the most important settings you may want to configure for a production cluster. # # Please consult the documentation for further information on configuration options: # [https://www.elastic.co/guide/en/elasticsearch/reference/index.html](https://www.elastic.co/guide/en/elasticsearch/reference/index.html) # # ---------------------------------- Cluster ----------------------------------- # # Use a descriptive name for your cluster: # #cluster.name: my-application cluster.name: xh-elastic-cluster-1 # # ------------------------------------ Node ------------------------------------ # # Use a descriptive name for the node: # # node.name: xh-ita-elastic-1 node.name: xh-it-elastic-2 cluster.initial\_master\_nodes: - xh-gr-elastic-1 - xh-fr-elastic-1 - xh-it-elastic-1 discovery.seed\_hosts: - 10.158.67.175 - 10.159.166.9 - 10.158.67.107 - 151.98.17.60 - 151.98.17.61 - 135.238.239.48 - 135.238.239.132 node.data: true node.ingest: true node.master: true node.max\_local\_storage\_nodes: 1 xpack.license.self\_generated.type: basic xpack.security.enabled: false #node.master: true #node.data: false #node.ingest: false #cluster.remote.connect: false #node.name: node-1 # # Add custom attributes to the node: # #node.attr.rack: r1 # # ----------------------------------- Paths ------------------------------------ # # Path to directory where to store the data (separate multiple locations by comma): # path.data: /data/elasticsearch # # Path to log files: # path.logs: /var/log/elasticsearch # # ----------------------------------- Memory ----------------------------------- # # Lock the memory on startup: # #bootstrap.memory\_lock: true # # Make sure that the heap size is set to about half the memory available # on the system and that the owner of the process is allowed to use this # limit. # # Elasticsearch performs poorly when the system is swapping the memory. # # ---------------------------------- Network ----------------------------------- # # Set the bind address to a specific IP (IPv4 or IPv6): # network.host: 0.0.0.0 #network.bind\_host: 0.0.0.0 #network.publish\_host: 0.0.0.0 http.port: 9200 # transport.host: localhost transport.host: 0.0.0.0 transport.tcp.port: 9300 #network.host: localhost # # Set a custom port for HTTP: # #http.port: 9200 # # For more information, consult the network module documentation. # # --------------------------------- Discovery ---------------------------------- # # Pass an initial list of hosts to perform discovery when new node is started: # The default list of hosts is ["127.0.0.1", "[::1]"] # #discovery.zen.ping.unicast.hosts: ["10.158.67.175", "10.159.166.9", "10.158.67.107", "151.98.17.60", "151.98.17.61", "135.238.239.48", "135.238.239.13 2"] # # Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1): # #discovery.zen.minimum\_master\_nodes: # # For more information, consult the zen discovery module documentation. # # ---------------------------------- Gateway ----------------------------------- # # Block initial recovery after a full cluster restart until N nodes are started: # #gateway.recover\_after\_nodes: 3 # # For more information, consult the gateway module documentation. # # ---------------------------------- Various ----------------------------------- # # Require explicit names when deleting indices: # #action.destructive\_requires\_name: true ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 6, 2019, 3:01pm UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/2 "2019-12-06T15:01:55Z")
Do you have any idea why i am facing this error? ---
**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\ **Post date:** [December 9, 2019, 2:06pm UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/3 "2019-12-09T14:06:10Z")
Is it possible that you have installed the pure OSS distribution of Elasticsearch. Your yum configuration does not look like it, so the other possibility could be, that you are running another unofficial package of elasticsearch. Can you paste the output of these queries ```auto GET / GET /_license GET _license/basic_status GET _license/trial_status ``` ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 7:46am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/4 "2019-12-11T07:46:41Z")
> [@spinscale](#): > > GET / ``` { "name" : "xh-gr-elastic-1", "cluster_name" : "xh-elastic-cluster-1", "cluster_uuid" : "ap97EWHPRNOeejHqqSYP8w", "version" : { "number" : "7.5.0", "build_flavor" : "default", "build_type" : "rpm", "build_hash" : "e9ccaed468e2fac2275a3761849cbee64b39519f", "build_date" : "2019-11-26T01:06:52.518245Z", "build_snapshot" : false, "lucene_version" : "8.3.0", "minimum_wire_compatibility_version" : "6.8.0", "minimum_index_compatibility_version" : "6.0.0-beta1" }, "tagline" : "You Know, for Search" } ``` ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 7:47am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/5 "2019-12-11T07:47:06Z")
> [@spinscale](#): > > GET /\_license ``` { "license" : { "status" : "active", "uid" : "9b8384d7-06a0-47d8-9b89-698e0724431a", "type" : "basic", "issue_date" : "2019-09-06T13:03:14.672Z", "issue_date_in_millis" : 1567774994672, "max_nodes" : 1000, "issued_to" : "xh-elastic-cluster-1", "issuer" : "elasticsearch", "start_date_in_millis" : -1 } } ``` ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 7:47am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/6 "2019-12-11T07:47:48Z")
> [@spinscale](#): > > GET \_license/basic\_status ``` { "eligible_to_start_basic" : false } ``` ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 7:48am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/7 "2019-12-11T07:48:16Z")
> [@spinscale](#): > > GET \_license/trial\_status ``` { "eligible_to_start_trial" : true } ``` ---
**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\ **Post date:** [December 11, 2019, 8:23am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/8 "2019-12-11T08:23:56Z")
The error message at the top mentions > [http://itkvmxh01.emea.nsn-net.net:9200](http://itkvmxh01.emea.nsn-net.net:9200) however the node name in your configuration does not match this? Does the beat you are trying to start connect to another elasticsearch instance? ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 8:47am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/10 "2019-12-11T08:47:19Z")
I send you the output of the GET from the Dev Tools tab inside the Kibana not from the node that is not connected to to the cluster. Now i run them inside the node that is not connected. ![7](https://us1.discourse-cdn.com/elastic/original/3X/d/0/d09c62313f26e3d15b135e45f25cf335d8594ecb.png) ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 8:49am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/11 "2019-12-11T08:49:01Z")
``` [root@itkvmxh01 ~]# curl -XGET "http://localhost:9200/" { "name" : "xh-it-elastic-2", "cluster_name" : "xh-elastic-cluster-1", "cluster_uuid" : "_na_", "version" : { "number" : "7.5.0", "build_flavor" : "default", "build_type" : "rpm", "build_hash" : "e9ccaed468e2fac2275a3761849cbee64b39519f", "build_date" : "2019-11-26T01:06:52.518245Z", "build_snapshot" : false, "lucene_version" : "8.3.0", "minimum_wire_compatibility_version" : "6.8.0", "minimum_index_compatibility_version" : "6.0.0-beta1" }, "tagline" : "You Know, for Search" } [root@itkvmxh01 ~]# curl -XGET "http://localhost:9200/_license" {"error":{"root_cause":[{"type":"master_not_discovered_exception","reason":null}],"type":"master_not_discovered_exception","reason":null},"status":503} [root@itkvmxh01 ~]# curl -XGET "http://localhost:9200/_license/basic_status" {"error":{"root_cause":[{"type":"master_not_discovered_exception","reason":null}],"type":"master_not_discovered_exception","reason":null},"status":503} [root@itkvmxh01 ~]# curl -XGET "http://localhost:9200/_license/trial_status" {"error":{"root_cause":[{"type":"master_not_discovered_exception","reason":null}],"type":"master_not_discovered_exception","reason":null},"status":503} ``` ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 10:11am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/12 "2019-12-11T10:11:24Z")
If you see from my last commands on the node. The node cannot get the cluster uuid. ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 10:44am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/13 "2019-12-11T10:44:35Z")
``` [root@itkvmxh01 ~]# metricbeat test output elasticsearch: http://atdevxhv03.emea.nsn-net.net:9200... parse url... OK connection... parse host... OK dns lookup... OK addresses: 10.158.67.175 dial up... OK TLS... WARN secure connection disabled talk to server... OK version: 7.5.0 elasticsearch: http://it017060.it.alcatel-lucent.com:9200... parse url... OK connection... parse host... OK dns lookup... OK addresses: 151.98.17.60 dial up... OK TLS... WARN secure connection disabled talk to server... OK version: 7.5.0 elasticsearch: http://frelkxh01.fr.alcatel-lucent.com:9200... parse url... OK connection... parse host... OK dns lookup... OK addresses: 135.238.239.48 dial up... OK TLS... WARN secure connection disabled talk to server... OK version: 7.5.0 elasticsearch: http://atkvmxh01.emea.nsn-net.net:9200... parse url... OK connection... parse host... OK dns lookup... OK addresses: 10.159.166.9 dial up... OK TLS... WARN secure connection disabled talk to server... OK version: 7.5.0 elasticsearch: http://frkvmxh01.fr.alcatel-lucent.com:9200... parse url... OK connection... parse host... OK dns lookup... OK addresses: 135.238.239.132 dial up... OK TLS... WARN secure connection disabled talk to server... OK version: 7.5.0 elasticsearch: http://atdevxhv04.nsn-intra.net:9200... parse url... OK connection... parse host... OK dns lookup... OK addresses: 10.158.67.107 dial up... OK TLS... WARN secure connection disabled talk to server... OK version: 7.5.0 elasticsearch: http://itkvmxh01.emea.nsn-net.net:9200... parse url... OK connection... parse host... OK dns lookup... OK addresses: 151.98.17.61 dial up... OK TLS... WARN secure connection disabled talk to server... ERROR Connection marked as failed because the onConnect callback failed: invalid license found, requires a basic or a valid trial l icense and received Open source ``` Yes the beats are connected to all the other nodes on the ELK cluster. The problem is that this node cannot connected to the ELK cluster. The installation procedure for the elasticsearch to this node is exactly the same as the other nodes. ---
**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\ **Post date:** [December 11, 2019, 10:53am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/14 "2019-12-11T10:53:44Z")
it seems the last node has not joined the cluster. Checking the logs of that node would be the next step. ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 10:56am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/15 "2019-12-11T10:56:33Z")
The logs of the elasticsearch you mean? ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 11:15am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/16 "2019-12-11T11:15:47Z")
``` [2019-12-11T12:11:04,735][INFO][o.e.c.c.JoinHelper] [xh-it-elastic-2] failed to join {xh-fr-elastic-1}{CBiU9s_BSai2oBfVeZjwiQ}{8uq4Dht3Tzeb9oKibUaT8w}{135.238.239.48}{135.238.239.48:9300}{dilm}{ml.machine_memory=16654974976, ml.max_open_jobs=20, xpack.installed=true} with JoinRequest{sourceNode={xh-it-elastic-2}{6uKI_xAvSuu7R4NjkQJNFA}{uN-e-hsiSESxzCPg3s5WuA}{151.98.14.14}{151.98.14.14:9300}{dilm}{ml.machine_memory=269931491328, xpack.installed=true, ml.max_open_jobs=20}, optionalJoin=Optional.empty} org.elasticsearch.transport.RemoteTransportException: [xh-fr-elastic-1][135.238.239.48:9300][internal:cluster/coordination/join] Caused by: org.elasticsearch.transport.ConnectTransportException: [xh-it-elastic-2][151.98.14.14:9300] connect_exception ``` Hi again. I am getting these logs when i restart the elasticsearch service on this node. ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 11:16am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/17 "2019-12-11T11:16:37Z")
[`2019-12-11T12:11:03,161][WARN][o.e.c.c.ClusterFormationFailureHelper] [xh-it-elastic-2] master not discovered yet, this node has not previously joined a bootstrapped (v7+) cluster, and this node must discover master-eligible nodes [xh-gr-elastic-1, xh-fr-elastic-1, xh-it-elastic-1] to bootstrap a cluster: have discovered [{xh-it-elastic-2}{6uKI_xAvSuu7R4NjkQJNFA}{uN-e-hsiSESxzCPg3s5WuA}{151.98.14.14}{151.98.14.14:9300}{dilm}{ml.machine_memory=269931491328, xpack.installed=true, ml.max_open_jobs=20}, {xh-gr-elastic-1}{EmyFlH3zS3KkvJptV02pMQ}{gzuvyM9uSg-AaV34aYZyWg}{10.158.67.175}{10.158.67.175:9300}{dilm}{ml.machine_memory=16654729216, ml.max_open_jobs=20, xpack.installed=true}, {xh-gr-elastic-2}{46jaKQPSRC2drwy-bAfhxw}{tMU977R8THyw5bCf8re3kQ}{10.159.166.9}{10.159.166.9:9300}{dilm}{ml.machine_memory=269930561536, ml.max_open_jobs=20, xpack.installed=true}, {xh-gr-elastic-3}{bLV-av6fSAWBTep4FKAqWA}{jAkjiFSSQJOEZmq3nwx9mA}{10.158.67.107}{10.158.67.107:9300}{dilm}{ml.machine_memory=17179332608, ml.max_open_jobs=20, xpack.installed=true}, {xh-it-elastic-1}{g9M0MIndTBW62pSrEdktzA}{Fph4y6aVQE69CuNS9SKDuA}{151.98.17.60}{151.98.17.60:9300}{dilm}{ml.machine_memory=34359738368, ml.max_open_jobs=20, xpack.installed=true}, {xh-fr-elastic-1}{CBiU9s_BSai2oBfVeZjwiQ}{8uq4Dht3Tzeb9oKibUaT8w}{135.238.239.48}{135.238.239.48:9300}{dilm}{ml.machine_memory=16654974976, ml.max_open_jobs=20, xpack.installed=true}, {xh-fr-elastic-2}{obT4-IMdTU6kOAHKVFNxzA}{KEkLq7X-SlyAghnCKkG3cQ}{135.238.239.132}{135.238.239.132:9300}{dilm}{ml.machine_memory=269930713088, ml.max_open_jobs=20, xpack.installed=true}]; discovery will continue using [10.158.67.175:9300, 10.159.166.9:9300, 10.158.67.107:9300, 151.98.17.60:9300, 151.98.17.61:9300, 135.238.239.48:9300, 135.238.239.132:9300] from hosts providers and [{xh-it-elastic-2}{6uKI_xAvSuu7R4NjkQJNFA}{uN-e-hsiSESxzCPg3s5WuA}{151.98.14.14}{151.98.14.14:9300}{dilm}{ml.machine_memory=269931491328, xpack.installed=true, ml.max_open_jobs=20}] from last-known cluster state; node term 6874, last-accepted version 0 in term 0` ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 11:17am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/18 "2019-12-11T11:17:31Z")
`Caused by: java.io.IOException: connection timed out: 151.98.14.14/151.98.14.14:9300` ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 11, 2019, 2:56pm UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/19 "2019-12-11T14:56:33Z")
Do you have any idea about the output of the logs that i have sent? It seems that it cannot connect to the cluster something like java timeout on the connection ---
**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\ **Post date:** [December 12, 2019, 8:46am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/20 "2019-12-12T08:46:40Z")
can that host reach the elasticsearch data port of other node or is there maybe any firewall inbetween? ---
**Author:** ![antonopo](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@antonopo](https://discuss.elastic.co/u/antonopo)\ **Post date:** [December 12, 2019, 11:30am UTC](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910/21 "2019-12-12T11:30:43Z")
They can reach each other firewalls are off on all the nodes [Next page](https://discuss.elastic.co/t/talk-to-server-error-connection-marked-as-failed-because-the-onconnect-callback-failed-invalid-license-found-requires-a-basic-or-a-valid-trial-l-icense-and-received-open-sour/210910.md?page=2)