# Mender-connect is unable to connect to mender-server

**URL:** <https://hub.mender.io/t/mender-connect-is-unable-to-connect-to-mender-server/4134>\
**Category:** General Discussions\
**Tags:** ubuntu, mender-connect\
**Created:** [September 30, 2021, 11:41am UTC](https://hub.mender.io/t/mender-connect-is-unable-to-connect-to-mender-server/4134 "2021-09-30T11:41:15Z")\
**Posts on this page:** 5\
**Page:** 2

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**Author:** ![Dave](https://avatars.discourse-cdn.com/v4/letter/d/ee7513/32.png) [@Dave](https://hub.mender.io/u/Dave)\
**Post date:** [October 4, 2021, 4:03pm UTC](https://hub.mender.io/t/mender-connect-is-unable-to-connect-to-mender-server/4134/21 "2021-10-04T16:03:01Z")

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Hi @peter ,

As requested I disabled IPv6 as you can see in the traefik ports logging below:

```auto
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
68056ddcbdac mendersoftware/deployments:mender-3.0.1 "/entrypoint.sh --co…" 22 minutes ago Up 18 minutes 8080/tcp menderproduction_mender-deployments_1
625f9173a903 traefik:v2.4 "/entrypoint.sh --ac…" 23 minutes ago Up 18 minutes 80/tcp, 0.0.0.0:443->443/tcp menderproduction_mender-api-gateway_1
4770323ed55a mendersoftware/deviceauth:mender-3.0.1 "/usr/bin/deviceauth…" 23 minutes ago Up 18 minutes 8080/tcp menderproduction_mender-device-auth_1
8632752aea05 mendersoftware/deviceconnect:mender-3.0.1 "/usr/bin/deviceconn…" 23 minutes ago Up 18 minutes 8080/tcp menderproduction_mender-deviceconnect_1
940c5f0e7e4b mendersoftware/workflows-worker:mender-3.0.1 "/usr/bin/workflows …" 23 minutes ago Up 18 minutes menderproduction_mender-workflows-worker_1
92027f16fe9c mendersoftware/inventory:mender-3.0.1 "/usr/bin/inventory …" 23 minutes ago Up 18 minutes 8080/tcp menderproduction_mender-inventory_1
a0a874a9a1e7 mendersoftware/useradm:mender-3.0.1 "/usr/bin/useradm --…" 23 minutes ago Up 18 minutes 8080/tcp menderproduction_mender-useradm_1
00a43fbaeb28 mendersoftware/deviceconfig:mender-3.0.1 "/usr/bin/deviceconf…" 23 minutes ago Up 18 minutes 8080/tcp menderproduction_mender-deviceconfig_1
fc476030bba7 mendersoftware/workflows:mender-3.0.1 "/usr/bin/workflows …" 23 minutes ago Up 18 minutes 8080/tcp menderproduction_mender-workflows-server_1
2d795dc5db98 mendersoftware/create-artifact-worker:mender-3.0.1 "/usr/bin/workflows …" 23 minutes ago Up 18 minutes 8080/tcp menderproduction_mender-create-artifact-worker_1
61121baae6cc mongo:4.4 "docker-entrypoint.s…" 23 minutes ago Up 18 minutes 27017/tcp menderproduction_mender-mongo_1
5a0d89367cba nats:2.1.9-alpine3.12 "docker-entrypoint.s…" 23 minutes ago Up 18 minutes 4222/tcp, 6222/tcp, 8222/tcp menderproduction_mender-nats_1
9484948db9d2 mendersoftware/gui:mender-3.0.1 "/entrypoint.sh nginx" 23 minutes ago Up 18 minutes (healthy) 80/tcp, 8080/tcp menderproduction_mender-gui_1
af2b95efa9b8 minio/minio:RELEASE.2019-04-23T23-50-36Z "/usr/bin/docker-ent…" 23 minutes ago Up 18 minutes (healthy) 9000/tcp menderproduction_minio_1

```

Unfortunately mender-connect is still not working.

FYI, in front of our server we are running Akamai (WAF) and a reverse proxy. Do we need to configure something special for mender-connect? Or can it use exactly the same config as used for mender-client?

Again thanks for all the support.

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<div class="post-metadata">

**Author:** ![peter](https://avatars.discourse-cdn.com/v4/letter/p/278dde/32.png) [@peter](https://hub.mender.io/u/peter)\
**Post date:** [October 4, 2021, 5:42pm UTC](https://hub.mender.io/t/mender-connect-is-unable-to-connect-to-mender-server/4134/22 "2021-10-04T17:42:12Z")

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Hey Dave!

that changes the situation. you have to allow the upgrade to websocket ([Enable WebSockets for an EAA application](https://learn.akamai.com/en-us/webhelp/enterprise-application-access/enterprise-application-access/GUID-EE8C8AB4-5A96-44FE-8E61-86460EEA3915.html)) (I am not sure if that is what you use). What you have to do is similar to the configuration you have to do on, e.g.: nginx: [Using NGINX as a WebSocket Proxy](https://www.nginx.com/blog/websocket-nginx/)

peter

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<div class="post-metadata">

**Author:** ![Dave](https://avatars.discourse-cdn.com/v4/letter/d/ee7513/32.png) [@Dave](https://hub.mender.io/u/Dave)\
**Post date:** [October 6, 2021, 10:52am UTC](https://hub.mender.io/t/mender-connect-is-unable-to-connect-to-mender-server/4134/23 "2021-10-06T10:52:15Z")

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Hi @peter

I checked with our IT department and apparently our reverse proxy is not configured to support web sockets. This explains a lot. In case there is an update I will inform you. Thanks for all the support until now.

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<div class="post-metadata">

**Author:** ![peter](https://avatars.discourse-cdn.com/v4/letter/p/278dde/32.png) [@peter](https://hub.mender.io/u/peter)\
**Post date:** [October 6, 2021, 10:53am UTC](https://hub.mender.io/t/mender-connect-is-unable-to-connect-to-mender-server/4134/24 "2021-10-06T10:53:08Z")

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ok great! thanks!

peter

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**Author:** ![joelguittet](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/joelguittet/32/1064_2.png) [@joelguittet](https://hub.mender.io/u/joelguittet)\
**Post date:** [June 23, 2022, 6:55pm UTC](https://hub.mender.io/t/mender-connect-is-unable-to-connect-to-mender-server/4134/25 "2022-06-23T18:55:38Z")

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Hello,  
Just got the same error and thanks to you for the solution.  
I was using reverse proxy but websocket support was disabled, that’s now updated and connection is working properly.  
Cheers,  
Joel

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