# Eth0 is not working after R17 upgrade - WP76xx

**URL:** https://forum.sierrawireless.com/t/eth0-is-not-working-after-r17-upgrade-wp76xx/30593
**Category:** IoT Modules
**Created:** [September 12, 2023, 7:03am UTC](https://forum.sierrawireless.com/t/eth0-is-not-working-after-r17-upgrade-wp76xx/30593 "2023-09-12T07:03:44Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)
#### Post date: [September 12, 2023, 7:32am UTC](https://forum.sierrawireless.com/t/eth0-is-not-working-after-r17-upgrade-wp76xx/30593/2 "2023-09-12T07:32:47Z")

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please see here:

> [@OTG doesn't work as expected on Release 17](https://forum.sierrawireless.com/t/otg-doesnt-work-as-expected-on-release-17/30332/6):
>
> No we’re using the USB+/- lines directly connected to the WP7607 module. the USB host connector works fine on both boards with R17.

As workaround, you might need to use R16 or route to USB host connector which is using HSIC bus.

> [@R17, no eth0 in custom board](https://forum.sierrawireless.com/t/r17-no-eth0-in-custom-board/30210):
>
> After upgrading my WP7607 module to R17, it boots normally in mangOH-Green, but when I put it in a custom board (R16.3 used to function with no issue) eth0 is not present, (ifconfig doesn’t list eth0). It seems like an issue with low power mode on the usb host controller, btw I’ve tried executing echo NO\_SLEEP \> /sys/power/wake\_lock please find in the attachment two log files, one from the module when booting in mangOH-Green and the second is for the same module but in a custom board. [dev\_bo…](https://forum.sierrawireless.com/uploads/short-url/gryq9vqXj4hjevquqW0DwmWsiJP.txt)

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