Ethernet connection to wireless router fails

rune0077 · 2010-10-06 21:54:21

I'm having some major problems getting an ethernet connection to my Asus RT-N15 wireless router up and running. I can access the router just fine with wireless, but for some reason not when connected with an ethernet cable.

My card is a Realtek. As advised elsewhere i removed the kernel module that shipped with Arch and installed the one from Realteks download-site instead. "lspci -v" says I'm running the driver fine:

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
        Subsystem: ASUSTeK Computer Inc. Device 8385
        Flags: bus master, fast devsel, latency 0, IRQ 42
        I/O ports at e800 [size=256]
        Memory at fbfff000 (64-bit, non-prefetchable) [size=4K]
        Expansion ROM at fbfc0000 [disabled] [size=128K]
        Capabilities: [40] Power Management version 2
        Capabilities: [48] Vital Product Data
        Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+
        Capabilities: [60] Express Endpoint, MSI 00
        Capabilities: [84] Vendor Specific Information: Len=4c <?>
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [12c] Virtual Channel
        Capabilities: [148] Device Serial Number 40-00-00-00-68-4c-e0-00
        Capabilities: [154] Power Budgeting <?>
        Kernel driver in use: r8168
        Kernel modules: r8168

And mii-tool says there's at least a link to the router:

eth0: negotiated 100baseTx-FD flow-control, link ok

But alas, I am getting no ip-address at all. Here's ifconfig result:

eth0      Link encap:Ethernet  HWaddr 90:E6:BA:C2:CC:36  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:910 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1023 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:335898 (328.0 Kb)  TX bytes:138571 (135.3 Kb)
          Interrupt:42 Base address:0xa000

I've tried just about anything I could think of (which, granted, may not be all that much). I've rebooted the computer. I've restarted the router. I've restarted the router then rebooted the computer. I've tried four different ethernet cables (all of which works fine on my old router). I've tried dhcp and static ip. Nothing seems to work. I'm secretly suspecting that it's a bad configuration on the router, but I know very little about this, and am hoping some network-guru can shed some light on the situation. I have of course activated the dhcp server on the router.

Any help/advice would be much appreciated.

rune0077 · 2010-10-07 00:14:06

Okay, some more info. After trying to run the whole shabang through networkmanager, at least I get some error messages that may prove useful. This is from the logs:

Oct  7 02:12:39 localhost NetworkManager[1741]: <info> Activation (eth0) starting connection 'Test'
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> (eth0): device state change: 3 -> 4 (reason 0)
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) scheduled...
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) started...
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) scheduled...
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) complete.
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) starting...
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> (eth0): device state change: 4 -> 5 (reason 0)
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) successful.
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) scheduled.
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) complete.
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) started...
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> (eth0): device state change: 5 -> 7 (reason 0)
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> Activation (eth0) Beginning DHCPv4 transaction (timeout in 45 seconds)
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> dhcpcd started with pid 8754
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) complete.
Oct  7 02:12:39 localhost dhcpcd[8754]: version 5.2.7 starting
Oct  7 02:12:39 localhost NetworkManager[1741]: <info> (eth0): DHCPv4 state changed nbi -> preinit
Oct  7 02:12:39 localhost dhcpcd[8754]: eth0: broadcasting for a lease
Oct  7 02:13:09 localhost dhcpcd[8754]: timed out
Oct  7 02:13:09 localhost NetworkManager[1741]: <info> (eth0): DHCPv4 client pid 8754 exited with status 1
Oct  7 02:13:09 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 4 of 5 (IP4 Configure Timeout) scheduled...
Oct  7 02:13:09 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 4 of 5 (IP4 Configure Timeout) started...
Oct  7 02:13:09 localhost NetworkManager[1741]: <info> (eth0): device state change: 7 -> 9 (reason 5)
Oct  7 02:13:09 localhost NetworkManager[1741]: <info> Marking connection 'Test' invalid.
Oct  7 02:13:09 localhost NetworkManager[1741]: <warn> Activation (eth0) failed.
Oct  7 02:13:09 localhost NetworkManager[1741]: <info> Activation (eth0) Stage 4 of 5 (IP4 Configure Timeout) complete.
Oct  7 02:13:09 localhost NetworkManager[1741]: <info> (eth0): device state change: 9 -> 3 (reason 0)
Oct  7 02:13:09 localhost NetworkManager[1741]: <info> (eth0): deactivating device (reason: 0).

Arch Linux

#1 2010-10-06 21:54:21

Ethernet connection to wireless router fails

#2 2010-10-07 00:14:06

Re: Ethernet connection to wireless router fails

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