USB 3G Modem and WLAN can't work together

Greetings. :smiley:

I have a problem with my brand new RB 951Ui-2HnD.
I want to share my internet connection from a 3G modem (model Huawei Optus) to the WLAN (as an AP bridge).

I have checked that the WLAN is OK, I can create AP..
I also checked that the USB port is OK, as well as my 3G modem.

I can connect my modem with no problem at all (plug in the usb modem β†’ RB detects it β†’ dynamically add PPP-out interface β†’ RB gets dynamic IP address and gateway β†’ I can ping to Internet).
ONLY IF I disabled the WLAN.

When I enable the WLAN, the USB modem abruptly goes off, and the PPP-Out interface disconnects. Then if I try to manually disable and enable the PPP-Out interface, it just can’t connect.

Any ideas? :confused:

Thanks. :slight_smile:

Is like USB need more power than the board can give to it…

Use one bigger power source OR provide separate 5V to USB.