Create trouble-network.md

en/trouble-network.md

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+# OpenIPC Wiki
+[Table of Content](../index.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).