# HTTPConnectionPool Max retries exceeded with url: /settings

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**This error usually means Velocity MTA is not running. Often this is due to a misconfiguration when Velocity MTA and the ESP are running on the same server.** 
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On the VPS where Velocity MTA is installed run the following command to check for errors:

`docker logs edcom-velocity`

If you're running the ESP/MTA on the same server together, Velocity MTA will fail to start for the following reasons:

* The ESP has 0.0.0.0 in edcom-install/config/edcom.env instead of an IP dedicated just for use by the ESP. 

{% hint style="info" %}
0.0.0.0 tells the ESP use all available IP addresses it can find, this will block Velocity MTA from being able to start. 
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* velocity-install/config/mta.conf has the ESP IP configured as the management IP
* velocity-install/config/ipaddresses has the ESP IP as one of the sending IPs