[SOLVED) No network with either wired or wireless

raavas · 2012-05-20 20:06:44

My network on my Arch laptop seems to be not working. It was intermittent yesterday and now doesn't work at all. The router works both wirelessly and plugged in - tested with another (windows 7) computer. The intermittent problem was present on two different ISPs as well, so I am pretty sure it is not a service issue at the ISP end.

The networkmanager applet indicates that the router is connected. I tried a few things from this forum to no avail, and always reverted any changes so it seems that I did not do anything out of the ordinary. I tried to do a -Syu update but it failed mid-way due not being able to access the mirrors.

How can I check whether this is hardware or software settings problem?

Last edited by raavas (2012-05-21 17:55:24)

ewaller · 2012-05-20 20:40:04

Please post the output of ip addr
and of lspci -nn

raavas · 2012-05-21 15:56:16

Thanks for your reply. Looks like I cannot post it due the network being what it is and now I cannot even copy the results onto an USB stick for transferring them onto this other computer for posting...

Needless to say that the USB did not have any problems earlier.

It also seems that I can't get a Knoppix live cd to work either.

raavas · 2012-05-21 16:53:32

Ok, we're back in business. The USB works again.

Here is the report of ip addr:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
    link/ether 88:ae:1d:9a:11:cf brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
    link/ether 70:f1:a1:d8:b6:2a brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.2/24 brd 192.168.1.255 scope global wlan0
    inet6 fe80::72f1:a1ff:fed8:b62a/64 scope link 
       valid_lft forever preferred_lft forever

and here is lspci -nn

00:00.0 Host bridge [0600]: Advanced Micro Devices [AMD] RS880 Host Bridge [1022:9601]
00:02.0 PCI bridge [0604]: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (ext gfx port 0) [1022:9603]
00:04.0 PCI bridge [0604]: Advanced Micro Devices [AMD] RS780/RS880 PCI to PCI bridge (PCIE port 0) [1022:9604]
00:05.0 PCI bridge [0604]: Advanced Micro Devices [AMD] RS780/RS880 PCI to PCI bridge (PCIE port 1) [1022:9605]
00:11.0 SATA controller [0106]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] [1002:4391]
00:12.0 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397]
00:12.2 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396]
00:13.0 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397]
00:13.2 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396]
00:14.0 SMBus [0c05]: Advanced Micro Devices [AMD] nee ATI SBx00 SMBus Controller [1002:4385] (rev 41)
00:14.1 IDE interface [0101]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 IDE Controller [1002:439c] (rev 40)
00:14.2 Audio device [0403]: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA) [1002:4383] (rev 40)
00:14.3 ISA bridge [0601]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 LPC host controller [1002:439d] (rev 40)
00:14.4 PCI bridge [0604]: Advanced Micro Devices [AMD] nee ATI SBx00 PCI to PCI Bridge [1002:4384] (rev 40)
00:14.5 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI2 Controller [1002:4399]
00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration [1022:1200]
00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor Address Map [1022:1201]
00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller [1022:1202]
00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control [1022:1203]
00:18.4 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor Link Control [1022:1204]
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI Madison [Radeon HD 5000M Series] [1002:68c1]
01:00.1 Audio device [0403]: Advanced Micro Devices [AMD] nee ATI Redwood HDMI Audio [Radeon HD 5000 Series] [1002:aa60]
02:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM57780 Gigabit Ethernet PCIe [14e4:1692] (rev 01)
08:00.0 Network controller [0280]: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) [168c:002a] (rev 01)

How can I proceed?

ewaller · 2012-05-21 17:17:20

Okay, the Ethernet show that there is no carrier. Is it plugged into the router? Are the link lights on at either / both ends?
Until ip addr sees a carrier, wired things are not going to work.

On to the wireless...
If you perform an iwlist scan
does the system see any APs ?

raavas · 2012-05-21 17:55:06

Thanks again for your time. Looks like I managed to get a solution to this problem through a very unusual route: I had problems with syslog-ng failing in the boot process, then I had the aforementioned USB issues and decided to look into that first.

Turned out that the partition was full and therefore syslog-ng failed, and USBs could not mount. The solution was to do a

pacman -Sc

I feel a bit stupid now after asking these questions, but hopefully this thread helps others as well.

The problem is [SOLVED] for me at least.

Arch Linux

#1 2012-05-20 20:06:44

[SOLVED) No network with either wired or wireless

#2 2012-05-20 20:40:04

Re: [SOLVED) No network with either wired or wireless

#3 2012-05-21 15:56:16

Re: [SOLVED) No network with either wired or wireless

#4 2012-05-21 16:53:32

Re: [SOLVED) No network with either wired or wireless

#5 2012-05-21 17:17:20

Re: [SOLVED) No network with either wired or wireless

#6 2012-05-21 17:55:06

Re: [SOLVED) No network with either wired or wireless

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