# Unable to start voxl-dfs-server

Source: https://forum.modalai.com/topic/1546/unable-to-start-voxl-dfs-server
Category: VOXL 2 and VOXL 2 Mini (https://forum.modalai.com/category/26/voxl-2-and-voxl-2-mini)
Tags: voxl-2
Posted: 2022-11-15 11:57:26 UTC by Tamas Pal 0
Replies: 2 · Views: 600

## Tamas Pal 0 · 2022-11-15 11:57:26 UTC

I am trying to use collision prevention feature of voxl2, but I am not able to start voxl-dfs-server.
The is the terminal output. 
```
oxl2:/etc/modalai$ voxl-configure-dfs 
Starting Wizard
 
Do you want to reset the config file to factory defaults?
1) yes
2) no
#? 1
wiping old config file
Creating new config file: /etc/modalai/voxl-dfs-server.conf
 
do you want to enable or disable voxl-dfs-server
1) enable
2) disable
#? 1
enabling  voxl-dfs-server systemd service
Created symlink /etc/systemd/system/multi-user.target.wants/voxl-dfs-server.service → /etc/systemd/system/voxl-dfs-server.service.
starting  voxl-dfs-server systemd service
Done configuring voxl-dfs-server
voxl2:/etc/modalai$ voxl-inspect-services 
 Service Name         |  Enabled  |   Running   |  CPU Usage
---------------------------------------------------------------
 docker-autorun       | Disabled  | Not Running |  
 docker-daemon        | Disabled  | Not Running |  
 modallink-relink     | Disabled  | Not Running |  
 voxl-camera-server   |  Enabled  |   Running   |     0.0
 voxl-cpu-monitor     |  Enabled  |   Running   |     0.0
 voxl-dfs-server      |  Enabled  | Not Running |  
 voxl-imu-server      |  Enabled  |   Running   |     0.0
 voxl-mavlink-server  |  Enabled  |   Running   |     0.0
 voxl-modem           | Disabled  | Not Running |  
 voxl-portal          |  Enabled  |   Running   |     0.0
 voxl-px4-imu-server  | Disabled  | Not Running |  
 voxl-px4             |  Enabled  |   Running   |     0.0
 voxl-qvio-server     |  Enabled  |   Running   |     0.0
 voxl-softap          | Disabled  | Not Running |  
 voxl-static-ip       | Disabled  | Not Running |  
 voxl-streamer        | Disabled  | Not Running |  
 voxl-tag-detector    | Disabled  | Not Running |  
 voxl-tflite-server   | Disabled  | Not Running |  
 voxl-time-sync       | Disabled  | Not Running |  
 voxl-vision-px4      |  Enabled  |   Running   |     0.0
 voxl-wait-for-fs     |  Enabled  |  Completed  |  
voxl2:/etc/modalai$ systemctl start voxl-dfs-server 
voxl2:/etc/modalai$ voxl-inspect-services 
 Service Name         |  Enabled  |   Running   |  CPU Usage
---------------------------------------------------------------
 docker-autorun       | Disabled  | Not Running |  
 docker-daemon        | Disabled  | Not Running |  
 modallink-relink     | Disabled  | Not Running |  
 voxl-camera-server   |  Enabled  |   Running   |     0.0
 voxl-cpu-monitor     |  Enabled  |   Running   |     0.0
 voxl-dfs-server      |  Enabled  | Not Running |  
 voxl-imu-server      |  Enabled  |   Running   |     0.0
 voxl-mavlink-server  |  Enabled  |   Running   |     0.0
 voxl-modem           | Disabled  | Not Running |  
 voxl-portal          |  Enabled  |   Running   |     0.0
 voxl-px4-imu-server  | Disabled  | Not Running |  
 voxl-px4             |  Enabled  |   Running   |     0.0
 voxl-qvio-server     |  Enabled  |   Running   |     0.0
 voxl-softap          | Disabled  | Not Running |  
 voxl-static-ip       | Disabled  | Not Running |  
 voxl-streamer        | Disabled  | Not Running |  
 voxl-tag-detector    | Disabled  | Not Running |  
 voxl-tflite-server   | Disabled  | Not Running |  
 voxl-time-sync       | Disabled  | Not Running |  
 voxl-vision-px4      |  Enabled  |   Running   |     0.0
 voxl-wait-for-fs     |  Enabled  |  Completed  |  
```
How to fix it?

## Reply by Johnny Keeler (ModalAI staff) · 2022-11-15 18:28:55 UTC

Hi Tamas...
you started it correctly and i'd like to ask if you've followed it up with a couple other steps to just check the situation.
First after the configuration is set up, which you've done correctly, the device usually needs a full restart to begin working.
After the restart, check 'voxl-inspect-services' again to make sure the service is Enabled and Running, just to check.
If that passes the check, run 'ifconfig' to get your ip and post it in a web page browser. Among the available selections should be 'VOA PC' and should give you some positive results.!

![Screenshot from 2022-10-27 11-36-44.png](https://forum.modalai.com/assets/uploads/files/1668536530079-screenshot-from-2022-10-27-11-36-44.png) ![Screenshot from 2022-10-26 17-42-25.png](https://forum.modalai.com/assets/uploads/files/1668536530224-screenshot-from-2022-10-26-17-42-25.png)

## Reply by Guest · 2022-11-16 17:42:21 UTC

Can you try to run the server manually: ```voxl-dfs-server``` and see what the output says