WPA2 Security and Recv Errors.

Copy of a post I posted a couple of hours ago in the Airport Extreme 802.11n forum. As the issue could be MBP related I thought I'd post here too. Any (relevant) suggestions most welcome. Thanks.
In the ongoing quest to try and find out as much as I can about what was causing my AEBS to crash I noticed while looking at the Network Utility Info tab (Utilities/Network Utility/Network Interface (en1) that there were a large number of recv errors and they were increasing as I watched. It was rather like watching a ticker.
I did a bit of research and noticed that some people related the issue to WPA so I did a test.
I stopped the AEBS. Network Utility Reported
Sent Packets 5617335
Send Errors 4
Recv Packets 32254109
Recv Errors 46323
Collisions 0
I'd been watching the recv errors creep up.
I turned off security on the AEBS
An hour later I had
Sent Packets 5821527
Send Errors 4
Recv Packets 32860781
Recv Errors 46323
Collisions 0
So in an hour of hard use, no errors - they just stopped.
I then stopped the AEBS and turned WPA2 back on.
I got this about a minute or perhaps two after re-starting the router.
Sent Packets 5823694
Send Errors 4
Recv Packets 32864168
Recv Errors 46377
Collisions 0
That was about 20 mins ago. Errors are now at 46728 sorry 46729, sorrry 46754, Sorry 46784
You get the idea.
I wonder if anyone has any ideas? My concern is that it could be that the high error rate could be related to the AEBS crashes.
Thanks for reading.
Cheers.
POST -http://discussions.apple.com/thread.jspa?threadID=1134458&tstart=0

Thanks Ned.
I just tried on a new Core 2 2.4 which I happened to have lying around
Same thing. Errors when WPA 2 enabled, none when WPA 2 turned off. This is running n at 5ghz. Mind you, the errors on the new machine were in the hundreds and the errors on mine are in the thousands.
At 10.18 I had 73820 errors
At 10.44 I had 78662 errors
At 10.55 I had 79263 errors - I turned off WPA2
At 11.05 I have 79263 errors - ie none since I turned off WPA2
With the Santa rosa machine, I moved a 7gb file from my Airport Disk and got 300 errors with WPA2
Moved the same file again without WPA2 and got none.
I haven't tried 11g yet - only have so much time, but to be honest - and I understand you mean for diagnostic purposes - if they stop at 11g it doesn't help much as I need 11n or I would have stuck with the 54g Belkin I bought 3 years ago for $10. I'll try it a little later though out of deference.
If you get a chance, if you could take a look at your recv errors (assuming you use WPA2) I'd be very grateful.
Cheers.

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Hi Jake,
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http://plandemonium.wordpress.com/

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http://h30434.www3.hp.com/t5/Printer-Networking-and-Wireless/Connect-your-wireless-printer-when-away...
Say thanks by clicking the Kudos Thumbs Up to the right in the post.
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Greetings!
Still relatively new to MBP and Mac OS - ramping up fast on account of having to troll Forums for info about MBP's not so reliable WiFi performance...
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Check this document: https://msdn.microsoft.com/en-us/library/windows/desktop/aa370030(v=vs.85).aspx
https://msdn.microsoft.com/en-us/library/windows/desktop/aa369853(v=vs.85).aspx
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kontraband wrote:
Hi hadimassa...
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‡Thank you for hitting the Blue/Green Star button‡
N8-00 RM 596 V:111.030.0609; E71-1(05) RM 346 V: 500.21.009

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In the last two months, I've had the displeasure of working with two very different HP printers and attempting to make them work on a WPA2-secured wireless network. All attempts to authenticate fail with "invalid phassphrase".
I'm not the first person to encounter this, it's a problem with many different HP wireless printers (I just happen to have physical access to the OfficeJet Pro 8610 & Deskjet 3511).
My equipment is a Cisco ASA 5505 Firewall running ASA 9.1x & Cisco Aironet 1142 running IOS 15.3.x.
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To test the theory there is a problem with HP's implementation of WPA2 with regard to Cisco Aironet IOS, I built out a second SSID that only works in WPA/TKIP mode. This solution works. Both HP printers will join the WPA/TKIP network.
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Building configuration...
Current configuration : 6064 bytes
! Last configuration change at 12:46:47 UTC Fri Aug 20 1993 by admin
version 15.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname 10-10-50-1
logging buffered 1024768
logging rate-limit console 9
aaa new-model
aaa authentication login default local
aaa authorization exec default local
aaa session-id common
no ip source-route
no ip cef
ip domain name freedom.local
dot11 syslog
dot11 vlan-name inside vlan 50
dot11 vlan-name inside-wpa-only vlan 70
dot11 ssid inside
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   authentication key-management wpa version 2
   mbssid guest-mode
   wpa-psk ascii 7 xxxxxx
   information-element ssidl
dot11 ssid inside-wpa-only
   vlan 70
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   authentication key-management wpa
   mbssid guest-mode
   wpa-psk ascii 7 xxxxxx
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   cycle-threshold 200
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   expire-dual-band 60
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dot11 wpa handshake timeout 500
dot11 network-map
username ADMIN privilege 15 secret 5 xxxxxx
ip ssh version 2
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interface Dot11Radio0
no ip address
no ip route-cache
encryption vlan 50 mode ciphers aes-ccm
encryption vlan 70 mode ciphers aes-ccm tkip
ssid inside
ssid inside-wpa-only
antenna gain 0
mbssid
speed basic-1.0 basic-2.0 basic-5.5 basic-11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15.
channel 2412
station-role root
l2-filter bridge-group-acl
interface Dot11Radio0.50
encapsulation dot1Q 50 native
no ip route-cache
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
interface Dot11Radio0.70
encapsulation dot1Q 70
no ip route-cache
bridge-group 70
bridge-group 70 subscriber-loop-control
bridge-group 70 input-address-list 700
bridge-group 70 output-address-list 700
bridge-group 70 spanning-disabled
bridge-group 70 block-unknown-source
no bridge-group 70 source-learning
no bridge-group 70 unicast-flooding
interface GigabitEthernet0
no ip address
no ip route-cache
duplex auto
speed auto
interface GigabitEthernet0.50
encapsulation dot1Q 50 native
no ip route-cache
bridge-group 1
bridge-group 1 spanning-disabled
no bridge-group 1 source-learning
interface GigabitEthernet0.70
encapsulation dot1Q 70
no ip route-cache
bridge-group 70
bridge-group 70 spanning-disabled
no bridge-group 70 source-learning
interface BVI1
mac-address xxxx.xxxx.xxxx
ip address 10.10.50.1 255.255.255.0
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ip forward-protocol nd
ip http server
ip http authentication aaa
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
ip route 0.0.0.0 0.0.0.0 10.10.50.2
logging history size 100
access-list 111 permit tcp any any neq telnet
bridge 1 route ip
line con 0
access-class 111 in
line vty 0 4
access-class 111 in
length 0
transport input ssh
line vty 5 15
access-class 111 in
transport input ssh
end

I get the same behavior with a laserjet m451nw. I need to enable tkip to get the printer working, it doesn't support pure aes-ccm (every other device here supports pure aes-ccm, even cheap ones), although it's advertised as working.
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vlan 1
band-select
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I've tried separating concerns, for example protect files but not require SSL, and enable SSL but do not protect files. Both works respectively but not together. I also tried using a download4j's DownloadServlet. Still doesn't work.
Have any of you encouter the same situation? If so, could you enlight me what I did wrong? It maybe just a simple SSL configuration or something. Thanks in advance!
Jack

My environment setup is:
JDK 1.5.01
Tomcat 5.5.7
For downloading files, I just use plain old <a href> method. I simply right-click the link and choose "save target as...".
Thanks,
Jack

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     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
load: class com.crystaldecisions.ReportViewer.ReportViewer not found.
java.lang.ClassNotFoundException: com.crystaldecisions.ReportViewer.ReportViewer
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed.
     at sun.applet.AppletClassLoader.getBytes(Unknown Source)
     at sun.applet.AppletClassLoader.access$100(Unknown Source)
     at sun.applet.AppletClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     ... 10 more
Cheers,
Zilmar
Message was edited by:
Zilmar

I don't know anything about Crystal Reports whatsoever, and I couldn't care less frankly. There has been an excess of postings on these forums about this product, whatever it may be.
If Crystal Reports isn't relevant to the problem why was it mentioned? In the title?
And in any case why was it posted in a forum entitled 'Reflections & Reference Objects'?
And your suggestion that it's up to me to do the research is fallacious and indeed ludicrous.
And the error message 'java.io.FileNotFoundException: http://localhost/viewer9/javaviewer/ReportViewer.jar' is entirely self-explanatory.
And it strongly appears to have something to do with the deployment of Crystal Reports.
None of which is a Reflections & Reference Objects problem, or a Java problem, or Sun's problem.

WPA2 Security and Recv Errors.

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