wiki/en/trouble-network.md

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# OpenIPC Wiki
[Table of Content](../README.md)
## Troubleshooting: Network does not work
Some IP-cameras require additional parameters set to make the network interface work.
### For recent firmware
Use `extras` boot variable. In Linux console run this
```
fw_setenv extras 'hieth.phyaddru=0 hieth.phyaddrd=1' && reboot
```
If the above settings did not work, try this instead
```
fw_setenv extras 'hieth.phyaddru=1 hieth.phyaddrd=0' && reboot
```
If the above settings did not work, try this instead
```
fw_setenv extras 'hieth.mdioifu=0 hieth.mdioifd=0' && reboot
```
If the above settings did not work, try this instead
```
fw_setenv extras 'hieth.mdioifu=1 hieth.mdioifd=1' && reboot
```
If nothing of the above worked for you, seek help on [our Telegram channel](https://t.me/openipc).
### For older firmware
Set `phyaddru` and `phyaddrd` variables from U-Boot console:
```
setenv phyaddru 0; setenv phyaddrd 1; saveenv; reset
```
If the above settings did not work, try this instead
```
setenv phyaddru 1; setenv phyaddrd 0; saveenv; reset
```
If the above settings did not work, try this instead
```
setenv phyaddru 0; setenv phyaddrd 0; saveenv; reset
```
If the above settings did not work, try this instead
```
setenv phyaddru 1; setenv phyaddrd 1; saveenv; reset
```
If nothing of the above worked for you, seek help on [our Telegram channel](https://t.me/openipc).