Author Topic: WHR-HP-G300N +DD-WRT packet loss  (Read 8586 times)

isso

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WHR-HP-G300N +DD-WRT packet loss
« on: July 09, 2010, 11:10:58 am »

I got my new   WHR-HP-G300N 2 days ago and i directly installed the DD-WRT firmware(v24sp2-14512) from Buffalo website .I am having a significant packet loss when pinging yahoo and google ,on both wired and wireless connection .

I switched back to the buffalo firmware (1.82) and no more packet loss .

I have noticed that a lot of other people are having the exact same problem but the support team @Buffalo don't have an answer for that .

I would like to hear an answer from their support team about this issue ,do they know already about it but they don't admit it ? Are they working on a fix for that ?

 


Dustrega

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #1 on: July 09, 2010, 04:26:52 pm »

Since the firmware was written by DD-WRT and granted it is supported on this model, does not mean that we have access to the source or the ability to debug the firmware.  Basically, if the issue is discovered/known then it is passed along to be included in a firmware revision as necessary.  I didn't hear about this issue until just recently but I will pass it along to help ensure the problem is looked at before the next firmware release.


isso

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #2 on: July 09, 2010, 10:49:46 pm »

 

 

Thank you for your quick reply ,please keep us posted about the updated fix when available .

 


drmemory

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #3 on: July 12, 2010, 03:42:17 pm »

We are keeping the DD-WRT engineers informed of all issues with the FW. Please post as much information about issues, as you can, with details/screenshots.


drmemory

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #4 on: July 13, 2010, 11:32:38 am »

If packet loss is happening, it should happen for all hosts (not just google and yahoo). What kind of internent connection are you using?


isso wrote:

I got my new   WHR-HP-G300N 2 days ago and i directly installed the DD-WRT firmware(v24sp2-14512) from Buffalo website .I am having a significant packet loss when pinging yahoo and google ,on both wired and wireless connection .

I switched back to the buffalo firmware (1.82) and no more packet loss .

I have noticed that a lot of other people are having the exact same problem but the support team @Buffalo don't have an answer for that .

I would like to hear an answer from their support team about this issue ,do they know already about it but they don't admit it ? Are they working on a fix for that ?

 


 


isso

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #5 on: July 13, 2010, 11:15:15 pm »

Hi Drmemory ,

 

I gave you Google and Yahoo as an example ,but the packet loss is for all internet address that are pingable .

 

I live in Canada and my ISP is Shaw cable with a motorola Surfboard SB5101.

 

I tried for the 2nd time to re-install DD-Wrt and i disable firewall  but i had the exact same problem of packet loss when pinging internet addresses put no packet loss pinging the router (from wired and wireless connection).

 

Other than the packet loss ,i noticed also that the reply time fluctuate too much when pinging the router and internet addresses(using wired and wireless connection ) and it was too high ,for example reply time pinging yahoo is from 99 to 220 ms,pinging the router is 20ms.

 

Moreover the wireless signal constantly changing to the worst ,for example when i use Band Width 40 MHZ the connection on the laptop start at 270Mbps then keep dropping till it reaches 135Mbps .(i am using N wireless)

 

I switched back to the Buffalo Firmware and everything is working like normal ,no more packet loss and the reply time pinging yahoo is 60ms constant ,pinging the router is 2 ms.

But with Buffalo firmware ,using band width 20 ,the max connection speed is 65 Mbps and with Band Width 40 the Max connection speed is 150Mbps ,i don't know why i am not getting to 300 Mbps,i double check my wireless adapter to use auto(20/40).

 


mfeingol

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #6 on: July 18, 2010, 01:54:04 pm »

I am seeing a very similar problem.  I'm using the official DDWRT 14512 firmware on my WHR-HP-G300N, and most of the time it works very well.  However, every few days our internet connection starts chugging and there is packet loss at the router.  Restarting the router clears the issue up for a few more days, and then it comes back.

 

I'm considering reverting to the original Buffalo firmware, but I'd greatly prefer to continue using DDWRT.

 

BuffaloTech, what kind of data would help you diagnose this problem?


slybunda

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #7 on: July 18, 2010, 08:40:23 pm »

when the packet loss occurs how much free memory does the router have? could be memory leak issue.


mfeingol

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #8 on: July 21, 2010, 10:47:12 pm »

It might be a leak.  I haven't reproduced the problem lately, but here's my current memory usage after 81 hours uptime.  Normal?

 

Mem: 25048K used, 4872K free, 0K shrd, 1904K buff, 5988K cached
CPU:  0.0% usr  0.0% sys  0.0% nic  100% idle  0.0% io  0.0% irq  0.0% sirq
Load average: 0.07 0.07 0.02 2/30 27755
  PID  PPID USER     STAT   VSZ %MEM %CPU COMMAND
 1053     1 root     S     6476 21.5  0.0 httpd -p 80
 1075     1 root     S     1884  6.2  0.0 httpd -S
...


mfeingol

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #9 on: July 22, 2010, 10:43:25 pm »

Next day, the packet loss begins.  Looks like httpd leaking it is.

 

Mem: 26692K used, 3228K free, 0K shrd, 1904K buff, 5996K cached
CPU:  0.0% usr  0.0% sys  0.0% nic  100% idle  0.0% io  0.0% irq  0.0% sirq
Load average: 0.06 0.02 0.00 1/30 10475
  PID  PPID USER     STAT   VSZ %MEM %CPU COMMAND
 1053     1 root     S     6896 22.9  0.0 httpd -p 80


isso

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #10 on: July 23, 2010, 01:23:43 pm »

My Packet loss begins after only 10 min of flashing DD-WRT .

Looks like there is no solution in the near future unless the Guys in DD-WRT start using the proper Atheros driver ,check their forums and you will notice that it is a common problem .

 

I am realy disappointed with all this crappy thing ,my only reason of buying a Buffalo router is to use DD-WRT after they officialy released DD-WRT firmware for their products .

Probably I should go back to my trusted Pfsense router .


Highland

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #11 on: July 23, 2010, 11:12:36 pm »

Same experience. Some notes on what's going on (using 14512)

 

First off, it's intermittent packet loss across the board. It doesn't show up as readily in web surfing but I wouldn't expect it to. Packet loss tends to be noticable in surfing to your average user around the 30-50% loss mark. It's not that high. But I play games on my router and those require constant streams of traffic or you get noticable jerking and sometimes dropped audio from other players.

 

 

>ping -t yahoo.comPinging yahoo.com [67.195.160.76] with 32 bytes of data:Reply from 67.195.160.76: bytes=32 time=45ms TTL=46Reply from 67.195.160.76: bytes=32 time=54ms TTL=46Reply from 67.195.160.76: bytes=32 time=46ms TTL=46Reply from 67.195.160.76: bytes=32 time=45ms TTL=46Reply from 67.195.160.76: bytes=32 time=45ms TTL=46Request timed out.Request timed out.Request timed out.Reply from 67.195.160.76: bytes=32 time=44ms TTL=46Reply from 67.195.160.76: bytes=32 time=47ms TTL=46Reply from 67.195.160.76: bytes=32 time=44ms TTL=46Request timed out.Request timed out.Reply from 67.195.160.76: bytes=32 time=46ms TTL=46Reply from 67.195.160.76: bytes=32 time=44ms TTL=46Reply from 67.195.160.76: bytes=32 time=45ms TTL=46Reply from 67.195.160.76: bytes=32 time=44ms TTL=46Reply from 67.195.160.76: bytes=32 time=47ms TTL=46Reply from 67.195.160.76: bytes=32 time=47ms TTL=46Reply from 67.195.160.76: bytes=32 time=45ms TTL=46Reply from 67.195.160.76: bytes=32 time=44ms TTL=46Reply from 67.195.160.76: bytes=32 time=51ms TTL=46Reply from 67.195.160.76: bytes=32 time=53ms TTL=46Reply from 67.195.160.76: bytes=32 time=48ms TTL=46Reply from 67.195.160.76: bytes=32 time=47ms TTL=46Reply from 67.195.160.76: bytes=32 time=49ms TTL=46Request timed out.Reply from 67.195.160.76: bytes=32 time=46ms TTL=46Reply from 67.195.160.76: bytes=32 time=44ms TTL=46Ping statistics for 67.195.160.76:    Packets: Sent = 29, Received = 23, Lost = 6 (20% loss),Approximate round trip times in milli-seconds:    Minimum = 44ms, Maximum = 54ms, Average = 46ms

 

 

Second, this is not a wireless issue. I'm on an ethernet port.

 

Third, there seems to be a related problem with the router under Buffalo's DD-WRT. Sometimes, after a reboot, the router is horribly slow in routing. In fact, looking at this now, I believe that in those cases where the router was nearly unresponsive, the packet loss was probably thought the roof. I'd sometimes get a complete page but, more often than not, I'd time out. A reboot fixed it most of the time.


Highland

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #12 on: July 24, 2010, 09:37:33 am »

I have a hypothesis but I'm not able to test it at present (I have it running and stable on 1.82). If someone finds this thread and you're using the Buffalo DD-WRT (not the one from DD-WRT itself) try this

 

Look on the back of your router (where the Ethernet ports are). There is a small switch at the end by the antennas labeled Router. It has Auto, Off and On. By default it's shipped on Auto (which, as I've come to find, is a bad thing). Using the Buffalo stock firmware this switch in Auto tells the router to figure out what kind of network it's on. Apparently it's rather stupid because I couldn't get it to work AT ALL with it set to that. By setting it to On I was able to specify what kind of network I'm using (for some reason all the Buffalo software is fixated on PPPoE and couldn't figure out I was on DHCP). In theory this shouldn't matter to DD-WRT but if it fixed the stock firmware I wonder if it would interfere with DD-WRT.

 

Just a thought.


pwssr

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #13 on: July 25, 2010, 09:41:29 am »

I agree!

 

I just installed one and initially, it would barely connect.  Based on another post I saw somewhere, I flipped the switch from AUTO to ON and things have gotten significantly better.   There is still some packet loss, but generally much more tolerable.


jmitkin

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Re: WHR-HP-G300N +DD-WRT packet loss
« Reply #14 on: August 06, 2010, 04:05:30 pm »

When will be the packet loss issue fixed? When should we expect the next Buffalo branded DD-WRT firmware that will work without any issues? The only reason that I bought Buffalo was because of DD-WRT ...I start to regret my choice ...