# Pmm-agent registration error

**URL:** <https://forums.percona.com/t/pmm-agent-registration-error/22480>\
**Category:** Database Monitoring and Management\
**Created:** [June 1, 2023, 12:38pm UTC](https://forums.percona.com/t/pmm-agent-registration-error/22480 "2023-06-01T12:38:23Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![farhan.ext](https://avatars.discourse-cdn.com/v4/letter/f/6f9a4e/32.png) [@farhan.ext](https://forums.percona.com/u/farhan.ext)\
**Post date:** [June 1, 2023, 12:38pm UTC](https://forums.percona.com/t/pmm-agent-registration-error/22480/1 "2023-06-01T12:38:23Z")

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Hello,  
getting below error on one of the node while registering pmm-agen, anyone please help:

Failed to register pmm-agent on PMM Server: Post “[https://serverIP:443/v1/management/Node/Register](https://serverIP:443/v1/management/Node/Register)”: Service Unavailable.

telnet on 443 port is working fine.

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**Author:** ![Roma\_Novikov](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/roma_novikov/32/1161_2.png) [@Roma\_Novikov](https://forums.percona.com/u/Roma_Novikov)\
**Post date:** [June 1, 2023, 12:51pm UTC](https://forums.percona.com/t/pmm-agent-registration-error/22480/2 "2023-06-01T12:51:34Z")

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Hello @farhan.ext.  
Do you have any additional proxy between the Client and the Server?  
As this is one of the most common causes of this problem, you can find in our forum [1](https://forums.percona.com/t/pmm-agent-can-not-connect-to-pmm-server-when-using-reverse-proxy/8435/11) , [2](https://forums.percona.com/t/unable-to-setup-proxy-between-pmm-client-and-server/8443/7)

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<div class="post-metadata">

**Author:** ![farhan.ext](https://avatars.discourse-cdn.com/v4/letter/f/6f9a4e/32.png) [@farhan.ext](https://forums.percona.com/u/farhan.ext)\
**Post date:** [June 2, 2023, 5:02am UTC](https://forums.percona.com/t/pmm-agent-registration-error/22480/3 "2023-06-02T05:02:11Z")

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No Roma, there is no additional proxy.

I abled to register and add slave for this server in PMM but this one is not registering

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<div class="post-metadata">

**Author:** ![Roma\_Novikov](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/roma_novikov/32/1161_2.png) [@Roma\_Novikov](https://forums.percona.com/u/Roma_Novikov)\
**Post date:** [June 2, 2023, 11:37am UTC](https://forums.percona.com/t/pmm-agent-registration-error/22480/4 "2023-06-02T11:37:33Z")

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@farhan.ext, then I would suggest reporting a bug in our [Jira](https://jira.percona.com/) for better investigation

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<div class="post-metadata">

**Author:** ![farhan.ext](https://avatars.discourse-cdn.com/v4/letter/f/6f9a4e/32.png) [@farhan.ext](https://forums.percona.com/u/farhan.ext)\
**Post date:** [June 19, 2023, 9:18am UTC](https://forums.percona.com/t/pmm-agent-registration-error/22480/5 "2023-06-19T09:18:10Z")

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Hello @Roma_Novikov  
below are the logs while trying to configure the mysql node:

[root@node-01/]# rpm -Uvh pmm2-client-2.37.0-6.el7.x86\_64.rpm  
warning: pmm2-client-2.37.0-6.el7.x86\_64.rpm: Header V4 RSA/SHA256 Signature, key ID 8507efa5: NOKEY  
Preparing… ################################# [100%]  
Updating / installing…  
1:pmm2-client-2.37.0-6.el7 ################################# [100%]  
[root@node-01/]#  
[root@node-01/]#  
[root@node-01/]# pmm-admin config --server-insecure-tls --server-url=[https://admin](https://admin):pass@  
Checking local pmm-agent status…  
pmm-agent is running.  
Registering pmm-agent on PMM Server…  
Failed to register pmm-agent on PMM Server: Post “https://:443/v1/management/Node/Register”: Service Unavailable.  
[root@node-01/]#

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<div class="post-metadata">

**Author:** ![farhan.ext](https://avatars.discourse-cdn.com/v4/letter/f/6f9a4e/32.png) [@farhan.ext](https://forums.percona.com/u/farhan.ext)\
**Post date:** [June 19, 2023, 9:18am UTC](https://forums.percona.com/t/pmm-agent-registration-error/22480/6 "2023-06-19T09:18:44Z")

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how to check if any additional proxy is there or not?

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<div class="post-metadata">

**Author:** ![Roma\_Novikov](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/roma_novikov/32/1161_2.png) [@Roma\_Novikov](https://forums.percona.com/u/Roma_Novikov)\
**Post date:** [June 23, 2023, 1:36pm UTC](https://forums.percona.com/t/pmm-agent-registration-error/22480/7 "2023-06-23T13:36:29Z")

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@farhan.ext try from the simplest query from your PMM Client to the PMM server

```auto
curl -v -X 'GET' \
  'https://pmmdemo.percona.com/v1/readyz' \
  -H 'accept: application/json'

```

And replace [pmmdemo.percona.com](http://pmmdemo.percona.com) with your server url/ip - this will give us more information about the problem.