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Author Topic: Unusually high number of garbled packets since installing R65  (Read 48843 times)

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Offline gof

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Re: Unusually high number of garbled packets since installing R65
« Reply #30 on: August 29, 2014, 01:43:39 pm »
I haven't noticed this issue for myself, but I did have a question.

Just out of curiousity, shouldn't any gabled packets be picked up by the TCP stack?  I thought TCP packets had a checksum and handshake for this very reason?  Or are the packets regenerated at each connection point?  Same for UDP although there is no handshake.  If the router were garbling a packet, wouldn't the end device (say, the Mac), throw out the packet and (for TCP) request a resend?

LGNilsson

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Re: Unusually high number of garbled packets since installing R65
« Reply #31 on: August 29, 2014, 02:36:57 pm »
This has nothing to do with that. It's a driver related issue and we're working on fixing it. The workaround for now is, don't use the WAN port in AP mode.

Offline reedog117

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Re: issues with RO65 firmware
« Reply #32 on: September 01, 2014, 06:38:40 pm »
I still have garbled data in AP mode when using the LAN ports instead of the WAN port.

Offline erocm123

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Re: Unusually high number of garbled packets since installing R65
« Reply #33 on: September 02, 2014, 01:10:32 am »
I switched from the WAN port to one of the LAN ports and haven't seen any corrupt packets since.

My router no longer shows up in the Almond+ Android app though. Says it is offline.

Offline bauer.cole

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Re: Unusually high number of garbled packets since installing R65
« Reply #34 on: September 02, 2014, 04:57:39 pm »
My router no longer shows up in the Almond+ Android app though. Says it is offline.

This here is what I was worried about, as I saw something similar. I see the same now. It seems to me that the A+ only connects itself to the internet over the WAN port. Its livable for me to not have it for now since I don't have any sensors yet.

Offline Nemhome

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Re: Unusually high number of garbled packets since installing R65
« Reply #35 on: September 02, 2014, 11:45:52 pm »
Hi guys,

same pb here : can't rsync or scp properly on some machines at home that are on wifi or when I am on a computer on wifi.
Typically :
Code: [Select]
Corrupted MAC on input.
Disconnecting: Packet corrupt
rsync: connection unexpectedly closed (176648918 bytes received so far) [receiver]
rsync error: error in rsync protocol data stream (code 12) at /SourceCache/rsync/rsync-42/rsync/io.c(452) [receiver=2.6.9]
rsync: connection unexpectedly closed (33278 bytes received so far) [generator]
rsync error: unexplained error (code 255) at /SourceCache/rsync/rsync-42/rsync/io.c(452) [generator=2.6.9]
or on scp
Code: [Select]
Corrupted MAC on input.
Disconnecting: Packet corrupt
lost connection

All of these machines are Mac, but I'm NOT in AP mode. All works fine on ethernet.

I've tried to reboot all machines (including the Almond+) with no luck.

When I curl a file (usually a test file, curl -fO http://test-debit.free.fr/image.iso) I can see a drop (it downloads à 10.5MB/s, then 30 seconds later, fall down to 1MB/s to up then another tim to 10.5MB/s).
« Last Edit: September 02, 2014, 11:53:13 pm by Nemhome »

Offline Lameth

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Re: Unusually high number of garbled packets since installing R65
« Reply #36 on: September 03, 2014, 06:42:29 pm »
I've got the same problem when transferring files from my FTP at work to my computer (connected to the Almond+ through WiFi). The download or upload are dropping all the time.
When I try the transfer through LAN from the Almond+ it is completely stable (been stable for 2 days straight now)...

I'm in AP mode as well.

Here my original post on the problem (didn't find this one at the time, sorry): http://forum.securifi.com/index.php/topic,1725.0.html

Will try the switch thing from WAN AP mode to LAN AP mode tomorrow to see.

Offline Lameth

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Re: Unusually high number of garbled packets since installing R65
« Reply #37 on: September 04, 2014, 01:48:39 pm »
are you using Almond plus WAN port in AP mode ?  if so , change to LAN port and try .

I did try that today and it worked perfectly for me. I'm transferring a big file from my FTP since 4h and it never dropped. I also put some stress on the network at the same time by restoring an iPhone from iCloud and neither connections dropped at any time. Perfect.

Thanks!!

Offline wj

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Re: Unusually high number of garbled packets since installing R65
« Reply #38 on: September 05, 2014, 02:09:30 am »
I'm also on R65 and I'm seeing corrupt frames both in AP mode and router mode (router mode with disabled DHCP server and using only the  LAN ports). Switching between using the WAN port or one of the LAN ports did not make a difference in AP mode.

Interestingly enough the corruption only seems to occur when using the 5GHz radio. Does this make any sense?

/wj

Offline reedog117

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Re: Unusually high number of garbled packets since installing R65
« Reply #39 on: September 05, 2014, 10:52:17 am »
I'm also on R65 and I'm seeing corrupt frames both in AP mode and router mode (router mode with disabled DHCP server and using only the  LAN ports). Switching between using the WAN port or one of the LAN ports did not make a difference in AP mode.

Interestingly enough the corruption only seems to occur when using the 5GHz radio. Does this make any sense?

/wj

Hmm.... when I was getting the corrupt frames, I was using the 5Ghz radio -- I haven't done any testing though on the 2.4 radio.  I'll try some things this weekend and see what I find.

Does anyone know when R66 is supposed to come out, and if a bunch of these problems will disappear?

LGNilsson

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Re: Unusually high number of garbled packets since installing R65
« Reply #40 on: September 07, 2014, 01:53:13 am »
We were going to release the new firmware next week, but it's going to take another week, as we need to do some additional testing.

Offline reedog117

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Re: Unusually high number of garbled packets since installing R65
« Reply #41 on: September 07, 2014, 12:37:43 pm »
Hmm.... when I was getting the corrupt frames, I was using the 5Ghz radio -- I haven't done any testing though on the 2.4 radio.  I'll try some things this weekend and see what I find.

Seems I also have corrupted packets in 2.4 Ghz mode. This is when I'm connected to the LAN port in AP mode

Code: [Select]
pc-macbook:Virtual Machines pat$ !518
while true; do curl -s -o test.dmg http://download.macromedia.com/pub/flash/updates/11_5_1/mac/Adobe-Flash-Professional-CS55-Update.dmg ; ls -la test.dmg ; md5 test.dmg ; sleep 1 ; done
-rw-r--r--+ 1 pat  staff  17222129 Sep  7 12:33 test.dmg
MD5 (test.dmg) = 84975767baca694a0e579954ca8b8f34
-rw-r--r--+ 1 pat  staff  17222129 Sep  7 12:33 test.dmg
MD5 (test.dmg) = 2d9bcdfe75375cba3e63dafdce976c51
-rw-r--r--+ 1 pat  staff  17222129 Sep  7 12:33 test.dmg
MD5 (test.dmg) = d167541dba8778b91585e61790fce9e6
-rw-r--r--+ 1 pat  staff  17222129 Sep  7 12:33 test.dmg
MD5 (test.dmg) = 2d9bcdfe75375cba3e63dafdce976c51
-rw-r--r--+ 1 pat  staff  17222129 Sep  7 12:34 test.dmg
MD5 (test.dmg) = 2d9bcdfe75375cba3e63dafdce976c51
^C
pc-macbook:Virtual Machines pat$ /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I
     agrCtlRSSI: -47
     agrExtRSSI: 0
    agrCtlNoise: -90
    agrExtNoise: 0
          state: running
        op mode: station
     lastTxRate: 130
        maxRate: 217
lastAssocStatus: 0
    802.11 auth: open
      link auth: wpa2-psk
          BSSID: e4:71:85:30:57:24
           SSID: HouseNetMediaBGN-test
            MCS: 15
        channel: 11

Offline wj

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Re: Unusually high number of garbled packets since installing R65
« Reply #42 on: September 07, 2014, 01:12:37 pm »
Seems I also have corrupted packets in 2.4 Ghz mode. This is when I'm connected to the LAN port in AP mode

When I tried your download test I actually saw a few corrupt downloads even on 2.4GHz (2 out of 40 tests). It indeed seems to be a problem on both bands, but only when the data rates are high enough (2.4GHz is completely swamped here so it took longer for the issue to show up). This is in router mode using a LAN port (basically used as an AP, DHCP server disbled). This setup was the least bad, but AP mode certainly is the desired mode for me to run.

We definitely need less broken firmware ASAP, or a way to at least mitigate this issue, it sure is an annoying one..

/wj

Offline wj

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Re: Unusually high number of garbled packets since installing R65
« Reply #43 on: September 07, 2014, 01:17:12 pm »
We were going to release the new firmware next week, but it's going to take another week, as we need to do some additional testing.

Any possibility to get access to a test version of this firmware to see if it solves these corrupt frame issues? In a future firmware it would also help a lot if the device does not recalculate the checksums when forwarding packets (then it would have been a lot more obvious that it misbehaved). SIlent data corruption / bit rot is never fun.

/wj

Offline Jessum

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Re: Unusually high number of garbled packets since installing R65
« Reply #44 on: September 10, 2014, 09:46:17 am »
Also on R65 in AP mode. Remote desktop disconnects frequently with encryption error.  Using 5ghz channel. Tried LAN and WAN Ports.
« Last Edit: September 10, 2014, 09:51:20 am by Jessum »

 

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