[Cerowrt-devel] Issues with 5ghz after a couple of days' uptime

Dave Taht dave.taht at gmail.com
Fri Mar 28 12:39:03 EDT 2014

This sounds like the problem jim gettys is having on 2.4ghz. It takes
1+ days to happen. We've ruled out ipv6 tunneling and syns as the
cause... he is presently running without syn flood, ipv6, and now WPA
support in the hope that that's a cause (there is a fix for WPA stuff
in 3.10.34 pending)

are you using WPA?

taking a long term packet capture seems worthwhile.

On Fri, Mar 28, 2014 at 1:04 AM, Toke Høiland-Jørgensen <toke at toke.dk> wrote:
> So I've had a strange issue with the 5ghz network on my wndr after a few
> days' uptime: Packets stopped getting through on the 5ghz network. I.e.
> clients already connected could no longer connect to anything, and
> trying to connect a new client resulted in the wlan association
> succeeding, but the clients failing to get a DHCP lease.
> There's nothing in the logs to indicate what might be wrong (no DMA
> errors or anything like that). 'logread' shows dnsmasq receiving and
> replying to DHCP requests, but the answers never reach the clients.
> Restarting the wireless (i.e. running 'wifi') fixed it.
> Any ideas? I'm on 3.10.32-12(ish). Built from git commit
> 9bbc728cb7508dce24c480ac63d6e4f63d5c02f5 from the cerowrt-3.10 repo. :)
> -Toke
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Dave Täht

Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html

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