Reboot R6400 required often

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milspec
milspec's picture
Reboot R6400 required often

Hi all,

I recently bought an R6400 and installed Tomato-by-Shibby ( version 1.28.0000 -137 K26ARM USB AIO-128K ).

To my surprise, my wife's laptop (thinkpad t430, ubuntu 14.04) intermittently loses connection and cannot reconnect to the router. Once this happens, the problem persists even if  I move the laptop close to the router .

( One of these times, my laptop (thinkpad w530, ubuntu 14.04 ) also could not connect. Overall the problem has been confined to the T430 )

When the laptop cannot connect, this message appears in the dmesg output:

[315402.592819] wlan2: direct probe to 10:3c:35:7d:a6:08 (try 1/3)
[315402.796942] wlan2: direct probe to 10:3c:35:7d:a6:08 (try 2/3)
[315403.001024] wlan2: direct probe to 10:3c:35:7d:a6:08 (try 3/3)
[315406.243226] wlan2: authentication with 10:3c:35:7d:a6:08 timed out
[315409.595450] wlan2: authenticate with 10:3c:35:7d:a6:08
[315409.602669] wlan2: direct probe to 10:3c:35:7d:a6:08 (try 1/3)
[315409.806894] wlan2: direct probe to 10:3c:35:7d:a6:08 (try 2/3)
[315410.010932] wlan2: direct probe to 10:3c:35:7d:a6:08 (try 3/3)
[315410.214960] wlan2: authentication with 10:3c:35:7d:a6:08 timed out

 

Note that this problem only occurs on the 2.4Ghz band; her laptop cannot connect  on the 5Ghz band.

Workaround: Reboot

The solution: reboot the router. Once I reboot it, my wife's laptop can connect fine...for about 24 hours.

No Sign of Problem On the Router Itself

When this problem occurs, I did not see any  problem on the router itself, (I see no obvious issues in the router's  dmesg output)

 

Questions

  • How do I go about confirming whether the problem lies in the laptop or the router?
  • Would upgrading the firmware help? ( I see tomato 138 has been released)
  • Could distance affect these timeouts? Our router is in the basement. I get '3 out of 5 ' for signal strength. We never had problems with the old-and-cheap wifi-router before, so I presupposed the 'stronger router with better firmware'  would run without problem.
  • Could traffic affect the timeouts?  We put our wireless phone base near the router. Both use the same frequency

 

thanks in advance

wub901
wub901's picture
did you clear nvram in router

did you clear nvram in router after flashing ?

SilverBear
SilverBear's picture
Client Lease Time?
Client Lease Time?
 
Another possibility that occurs to me: could the Client Lease Time (probably in DHCP Server settings) be set to expire after 24 hours and not auto-renew?