No network after update

[WarheadsSE]

Hello,

My Raspberry Pi with Arch Linux worked good until yesterday when I updated with "pacman -Syu".
After reboot I lost my connection network (using dhcp). When I downgrade to November 2013 (my image backup) I restore my connection. New update, and problems start. I see something about udev/rules in update.
How can I resolve this problem?

Best regards,
Nelson

[ocantodomelro]

I have tested more things and the real problema is:
if after update I connect direct to the modem is OK with DHCP ip.
if I connecte to my router D-Link 300 with dhcp server the raspberry cannot assume the IP

why?


some help please,
Nelson

[moonman]

Did you sync before rebooting?
I.e.
$this->bbcode_second_pass_code('', 'sync
sync
reboot')

[ocantodomelro]

hello, yes I do.
I have found the cause of the problem for not have internet after the update.
I just can not understand why!!!
In my router I have a dhcp server that assigns the ip to mac address and the problem is here. I do not know what updates of pacman does but I need to anssign the ip on the router.
The raspberry is acquiring the available ip in router.

Can someone explain why?

[moonman]

Any logs? Please do not doublepost.

[ocantodomelro]

I 'm new in linux (learning), how I can see the log's about the connections internet?

[moonman]

$this->bbcode_second_pass_code('', 'systemctl status <service>
dmesg
journalctl -n 10')