No DHCP on 3.0 beta

[vincegun]

I follow this (http://www.andreagrandi.it/2014/09/02/how-to-configure-edimax-ew-7811un-wifi-dongle-on-raspbian/) guide to connect my RPi1/2 to my network and it always works flawlessly.

I just installed the 3.0 beta to try on my RPi2 and now it doesn’t seem to want to get an IP address.

I get the following lines while it tries to connect to my Netgear R6100. Mind you, this hasn’t happened before.

————————————————————————-
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
No DHCPOFFERS received
No working leases in persistent database – sleeping
Done.
————————————————————————-

The first line will repeat 4-6 times with different numbers after “interval” each time. This seems like a bit of a bug. Can anyone reproduce it?

[max0r]

# /etc/network/interfaces
auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
auto wlan0
iface wlan0 inet dhcp
    wpa-ssid "YOUR SSID"
    wpa-psk "YOUR PSK"
iface default inet dhcp
wireless-power off

This is all I did to configure my wifi. But i didn’t use the retropie-3.0 sd card image, I installed retropie binaries with the setup script on a fresh raspian from 2015-02-16.
Does your wifi dongle work? Check with iwlist wlan0 scan. Have you tried using a static ip?

[vincegun]

Yes, it works. It’s the same one as in the link I provided. The Edimax ew-7811un.

After the system boots it just sits there and the led blinks on and off regularly a few times, then stops, then starts again. Over and over.

I haven’t tried a static IP and I wouldn’t know how to set one on this system. I’ve only ever used the raspbian wifi scan tool or the modified /etc/network/interfaces to just automatically grab one.

[max0r]

You can try a static ip with

# /etc/network/interfaces
auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
auto wlan0
iface wlan0 inet static
    address 192.168.0.2
    netmask 255.255.255.0
    gateway 192.168.0.1
    wpa-ssid "YOUR SSID"
    wpa-psk "YOUR PSK"
wireless-power off

[vincegun]

Thanks for that info. I have to go to work soon (damned third shift), but I’ll be trying this as soon as I’m able.

[vincegun]

Finally got around to trying this. It seemed to half work. The unit took the IP that I gave it, but I couldn’t connect to it via winscp.

[petrockblog]

did you reboot your router just to make sure ? I know it’s obvious, but worth checking at least.

DHCP does work on the latest image as I use it myself. Nothing specific to retropie has been changed in regards to dhcp from raspian. Could be some new incompatibility with latest kernel and your wireless chipset of course.

[vincegun]

I’ll try that when I’m able, thanks.

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