# WLAN not enabled/showing up.

Source: https://forum.modalai.com/topic/43/wlan-not-enabled-showing-up
Category: Flight Core and Legacy VOXL (https://forum.modalai.com/category/9/flight-core-and-legacy-voxl)
Tags: flight-deck
Posted: 2020-11-17 13:52:48 UTC by mrawding
Replies: 2 · Views: 1015

## mrawding · 2020-11-17 13:52:48 UTC

Wlan will not show up under ifconfig. Meaning that neither station or softap modes will work with voxl-wifi. I have tried restarting the wlan services with systemctl. I am wondering if this is a firmware issue. When I try restarting with:

```
systemctl restart wlan_daemon.service
```
I get this error:
```
Failed to restart wlan_daemon.service: Unit wcnss_wlan.service failed to load: No such file or directory.
```

I have also tried:

```
systemtctl restart start_wlan_services.service
```

This seems like maybe a break in the firmware and drivers somewhere? This has happened to two boards that have not been in flight and that had wlan/wifi working before.

I would appreciate any help to resolve this issue. I do not believe it is a hardware issue as both boards have the wifi antennas connected securely.

## Reply by mrawding · 2020-11-17 14:19:33 UTC

Actually,

Turns out that although the antennas were working properly before and seemed to have a good connection, replacing the antennas solved this issue.

## Reply by Chad Sweet (ModalAI staff) · 2020-11-17 15:30:21 UTC

Thank you very much for following up! Was going to recommend just reinstalling the system image as described [here](https://docs.modalai.com/flash-system-image/), but replacing the antennas is even easier

Here is the antenna we use for reference https://www.digikey.com/en/products/detail/molex/1461531100/8543422