Choose style:

Author Topic: Unusually high number of garbled packets since installing R65  (Read 38553 times)

0 Members and 1 Guest are viewing this topic.

Offline bryanlyon

  • Backer
  • *
  • Posts: 1
  • Thanks: 0
  • Registered : 20/08/2014
    YearsYearsYearsYearsYearsYearsYears
Unusually high number of garbled packets since installing R65
« on: August 20, 2014, 07:32:53 am »
After installing the new firmware version on my Almond+, I've been getting a MUCH higher number of garbled packets.  Downloads regularly fail verification, SSH connections fail with a lot, Pictures on websites have major glitches until I force a reload, and .  Unfortunately, I am not sure of the exact cause and it's irregular enough that I don't know how to gather information or replication information, but I am willing to try if anyone has any ideas.

Offline Ashok

  • Securifi Staff
  • *
  • Posts: 2770
  • Thanks: 3
  • Registered : 25/07/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Unusually high number of garbled packets since installing R65
« Reply #1 on: August 20, 2014, 12:30:48 pm »
Hi Bryanlyon,

I am sorry to hear about the trouble you faced with the Almond+. Rest be assured we are there to assist you. We have never faced any issue like this while testing and it is something which we are completely unaware of, however, in order to diagnose and resolve the issue completely, we need some additional information and possibly a quick phone support session would be more fruitful. Hence, please do let us if you are fine in working over a phone support session and for any further communication you can send an email to[suspicious] ashok.kumar@securifi.com and cc to joe.john@securifi.com. [/suspicious]

Best Regards,
Ashok Kumar,
Securifi Technical Support,
« Last Edit: August 21, 2014, 02:30:28 am by Lars »

Offline bauer.cole

  • Backer
  • *
  • Posts: 9
  • Thanks: 0
  • Registered : 29/07/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Unusually high number of garbled packets since installing R65
« Reply #2 on: August 20, 2014, 05:46:27 pm »
I too am seeing this. Any way I can help pin this down and get a fix?

Offline reedog117

  • Backer
  • *
  • Posts: 28
  • Thanks: 0
  • Registered : 22/07/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Unusually high number of garbled packets since installing R65
« Reply #3 on: August 21, 2014, 09:53:17 am »
I am not sure if I'm having the same issue, but since replacing my router with the A+ I have noticed that my Time Machine backups (which occur over Wifi) are always asking to be rebuilt and .dmg downloads from website seem to be corrupt on both of my laptops, plus my iOS devices have issues downloading/updating apps but the matter seems to be resolved after leaving the house and/or turning off WiFi and using the cell phone network

LGNilsson

  • Guest
Re: Unusually high number of garbled packets since installing R65
« Reply #4 on: August 21, 2014, 11:12:24 am »
After installing the new firmware version on my Almond+, I've been getting a MUCH higher number of garbled packets.  Downloads regularly fail verification, SSH connections fail with a lot, Pictures on websites have major glitches until I force a reload, and .  Unfortunately, I am not sure of the exact cause and it's irregular enough that I don't know how to gather information or replication information, but I am willing to try if anyone has any ideas.

So this didn't happen at all with the previous firmware?

Offline reedog117

  • Backer
  • *
  • Posts: 28
  • Thanks: 0
  • Registered : 22/07/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Unusually high number of garbled packets since installing R65
« Reply #5 on: August 21, 2014, 10:46:12 pm »
I can't say whether it happened or not with R064 since I updated to R065 right away after unboxing my Almond+

Offline bauer.cole

  • Backer
  • *
  • Posts: 9
  • Thanks: 0
  • Registered : 29/07/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Unusually high number of garbled packets since installing R65
« Reply #6 on: August 22, 2014, 10:29:31 pm »
Just thought I'd say that I didn't see this behavior on the previous firmware, but see it all the time now. I can't download things on Android or OSX because it constantly fails. Also, my Chromecast is having tons of troubles. You can see the picture degrade heavily and then eventually video locks up, followed not too long after by audio (with Netflix). I'm willing to help however I can, just say how and I'll do it. I can't do much in the current state....

LGNilsson

  • Guest
Re: Unusually high number of garbled packets since installing R65
« Reply #7 on: August 22, 2014, 11:22:26 pm »
Are all of you on Macs?

Offline jef152

  • Backer
  • *
  • Posts: 23
  • Thanks: 0
  • Registered : 18/08/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Unusually high number of garbled packets since installing R65
« Reply #8 on: August 23, 2014, 05:19:07 am »
I've experienced similar issues, download problems, garbled images, etc.  I'm on a Mac.

Offline reedog117

  • Backer
  • *
  • Posts: 28
  • Thanks: 0
  • Registered : 22/07/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Unusually high number of garbled packets since installing R65
« Reply #9 on: August 23, 2014, 10:04:15 am »
I have a Mac household with two Mac laptops and 3 iOS devices showing weird behavior.

I was going to write a script that just copies files back and forth and calculates MD5sums just to see when/where corruption occurs. I'm also in a condo so I do have overlapping Wifi networks in my environment on both 2.4 and 5 Ghz bands.

Does the Almond+ have netcat (nc) available if I SSH into it?

Offline Ohiomedic

  • Backer
  • *
  • Posts: 446
  • Thanks: 0
  • Registered : 27/05/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Unusually high number of garbled packets since installing R65
« Reply #10 on: August 23, 2014, 12:27:24 pm »
I think I'm having the same problem. Everything I've been downloading and installing seems to be corrupted on both my mac, and PC. I have also had some trouble with transffering files to my nas. I'd get a popup saying it couldn't find a file but I click retry and it continues to work.

Edit.

Unknown if it would have happened before, R65 is the only firmware I've used. Should also add that the Almond is running in AP mode and my network is setup like this with PC, MAC, and NAS connected by ethernet.

Cable modem->Airport Extreme -> Almond+ -> PC, Mac, NAS
« Last Edit: August 23, 2014, 12:36:19 pm by Ohiomedic »

Offline mr23

  • Backer
  • *
  • Posts: 204
  • Thanks: 1
  • Registered : 02/08/2013
    YearsYearsYearsYearsYearsYearsYearsYears
Re: Unusually high number of garbled packets since installing R65
« Reply #11 on: August 23, 2014, 01:38:32 pm »
I'm using a PC, and pulled down 4 copies of the firmware file, all arrived identical. Running R065.

Offline bauer.cole

  • Backer
  • *
  • Posts: 9
  • Thanks: 0
  • Registered : 29/07/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Unusually high number of garbled packets since installing R65
« Reply #12 on: August 23, 2014, 06:33:33 pm »
Doing some testing last night, taking mine out of AP mode fixed the issue for me. You guys want to test also? I know AP mode is what I want to be on in the end, but if its an AP mode only issue that helps the devs narrow down their issues I would think.

LGNilsson

  • Guest
Re: Unusually high number of garbled packets since installing R65
« Reply #13 on: August 23, 2014, 10:42:40 pm »
Can all you please try the above suggestion? It would really help to know if this is isolated to the AP mode as it would reduce the time it would take the software team to figure out the problem.

Offline reedog117

  • Backer
  • *
  • Posts: 28
  • Thanks: 0
  • Registered : 22/07/2014
    YearsYearsYearsYearsYearsYearsYears
Possible way to induce garbled packets in R065 and figure out a fix?
« Reply #14 on: August 23, 2014, 11:30:51 pm »
I'm trying to figure out a way to replicate the issue, but I'm having trouble -- here's what I'm trying:

Setup:
2011 MacBook Pro is connected via WiFi to the Almond+ via 802.11n (MCS 13-15)
Almond+ is connected to a Cisco Catalyst 2960G
Macintosh VM is running on an vSphere cluster also hooked up to the above switch

The MacBook Pro is the only device connected to the A+ via WiFi.  All other devices are going through other networking gear, with a pfSense firewall controlling access to the Internet.

On the MacBook Pro:

Code: [Select]
pc-macbook:~ pat$ dd if=/dev/urandom of=250MBtestfile bs=1m count=250
250+0 records in
250+0 records out
262144000 bytes transferred in 17.196924 secs (15243656 bytes/sec)
pc-macbook:~ pat$ md5 250MBtestfile
MD5 (250MBtestfile) = 5862b0c4be5e7bfb668fcb0fac503471

Then on the Macintosh VM (hardwired):

Code: [Select]
mac-vm01:~ pat$ for i in {1..20}; do nc -l 1337 > 250MBtestfile-recv ; md5 250MBtestfile-recv ; done

Then on the MacBook Pro:

Code: [Select]
pc-macbook:~ pat$ for i in {1..20}; do cat 250MBtestfile | nc mac-vm01 1337 ; sleep 5 ; done
This causes the laptop to send a 250MB test file 20 times to another listening Mac.  The listening Mac should output the same MD5 checksum 20 times, and this checksum should match the original calculated on the sending Mac.  This seems to work okay in both directions no matter which end does the sending, but what I am noticing on the Almond+ is this:

Code: [Select]
top - 03:21:24 up 5 days, 22:11,  0 users,  load average: 0.08, 0.03, 0.00
Tasks:  94 total,   1 running,  93 sleeping,   0 stopped,   0 zombie
Cpu0  :  0.3%us,  1.0%sy,  0.0%ni, 61.2%id,  0.0%wa,  0.0%hi, 37.5%si,  0.0%st
Cpu1  :  0.3%us,  0.7%sy,  0.0%ni, 74.0%id,  0.0%wa,  0.0%hi, 25.0%si,  0.0%st
Mem:    432392k total,   125184k used,   307208k free,    12500k buffers
Swap:        0k total,        0k used,        0k free,    35328k cached

Software IRQ time seems abnormally high to me.  I've seen it peak at 50-something on one CPU and 30-something on the other at the same time.  That's a lot considering there's only one computer connecting to the Almond+ and everything else is back going through my old access point.  I'm wondering if high loads that bring the A+ to 100%si or 0% idle time on either/both CPUs is what is causing this problem to occur.

I think the best way to stress test the router is to have 5-6 computers connected to the same Almond+ doing this test at the same time.  If packet corruption is occurring, we should check that the md5sum's are borked when the router seems to be pegged.

 

Page created in 0.097 seconds with 18 queries.

bottleneck