[SOLVED] Can no longer connect to networks since update

benoliver999 · 2014-02-01 11:00:54

I have a Realtek RTL8723AE wireless apapter, and since last night (I think caused by an update), I haven't been able to get a connection with it.

lspci -v

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723AE PCIe Wireless Network Adapter
	Subsystem: AzureWave Device 2114
	Flags: bus master, fast devsel, latency 0, IRQ 18
	I/O ports at e000 [size=256]
	Memory at f7d00000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [40] Power Management version 3
	Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
	Capabilities: [70] Express Endpoint, MSI 00
	Capabilities: [100] Advanced Error Reporting
	Capabilities: [140] Virtual Channel
	Capabilities: [160] Device Serial Number 01-23-87-fe-ff-4c-e0-00
	Kernel driver in use: rtl8723ae
	Kernel modules: rtl8723ae

The drivers and module seem to be loaded. So I tried

ip link

3: wlp2s0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
    link/ether 24:0a:64:b6:25:70 brd ff:ff:ff:ff:ff:ff

I try to do

ip link set wlp2s0 up

but I get no joy.

The log

dmesg -w

[  207.798131] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready

The above also spits out when I try

wifi-menu

(wifi-menu looks and finds nothing) and

dhcpcd

I'm suspicious that my ethernet adapter is suffering a similar problem, I get a similar output:

[  207.415569] IPv6: ADDRCONF(NETDEV_UP): enp3s0: link is not ready

I'm connected with my phone in tethering mode at the minute, unfortunately I have no way of testing the ethernet port.

I've been fortunate enough never to have had too many network issues in the past, but this has left me somewhat out of my depth when it comes to this, so I apologise in advance if I'm missing something.

Last edited by benoliver999 (2014-02-01 18:05:31)

pyther · 2014-02-01 16:49:27

You stated you think this broken behavior was caused by a system upgrade. It is probably relatively safe to suspect the kernel. Try downgrading the kernel. If downgrading the kernel fixes the problem, you can do a kernel bisect to figure out what commit broke things.

benoliver999 · 2014-02-01 17:36:47

Thanks for your reply.

I rolled back to 3.12.9-1-ARCH using pacman -U, but I'm still getting the problem.

UPDATE: Switching off, yanking the plug then starting again did the trick. Sorry, people from the future, your solution probably isn't here.

Last edited by benoliver999 (2014-02-01 18:04:31)

paholg · 2014-08-10 05:56:38

benoliver999 wrote:

Switching off, yanking the plug then starting again did the trick. Sorry, people from the future, your solution probably isn't here.

I have a laptop with the same wifi card and have been having similar issues. I just wanted to say that, after trying nearly everything (including booting into an old Debian partition to no avail), I saw this post.

I figured it couldn't hurt, so I shutdown the laptop, unplugged it and pulled the battery. I booted it again, and voilà, magically my wifi card worked again.

There must be some kind of switch that got toggled off, and was reset by clearing power. My laptop has two buttons with airplane labels that have never done anything (they probably would in Windows), but they did nothing for me.

Anyway, thank you person from the past, the solution is here.

Arch Linux

#1 2014-02-01 11:00:54

[SOLVED] Can no longer connect to networks since update

#2 2014-02-01 16:49:27

Re: [SOLVED] Can no longer connect to networks since update

#3 2014-02-01 17:36:47

Re: [SOLVED] Can no longer connect to networks since update

#4 2014-08-10 05:56:38

Re: [SOLVED] Can no longer connect to networks since update

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