INTEL WIRELESS
Wired Stuff
WiFi Tablet Corner
My80211 White Papers (Coming Soon!)

Cisco Wireless Compatibility Matrix (Nov. 2011)

Podcasts / Videos

My80211 Videos

Cisco: 802 11 frames with Cisco VIP George Stefanick

Fluke Networks: Minimize Wi Fi Network Downtime

Aruba: Packets never lie: An in-depth overview of 802.11 frames

ATM15 Ten Talk “Wifi drivers and devices”

Houston Methodist Innovates with Wireless Technology

Bruce Frederick Antennas (1/2)

 

Bruce Frederick dB,dBi,dBd (2/2)

Cisco AP Group Nugget

Social Links
Revolution WiFi Capacity Planner

Anchor / Office Extends Ports

 

2.4 GHz Channel Overlap

EXAMPLE 1  

EXAMPLE 2

EXAMPLE 3  

Peek Inside Cisco's Gear

See inside Cisco's latest wireless gear!

LWAPP QoS Packet Tagging

 

 

CWSP RELEASE DATE 2/08/2010
  • CWSP Certified Wireless Security Professional Official Study Guide: Exam PW0-204
    CWSP Certified Wireless Security Professional Official Study Guide: Exam PW0-204
    by David D. Coleman, David A. Westcott, Bryan E. Harkins, Shawn M. Jackman

    Shawn Jackman (Jack) CWNE#54 is a personal friend and has been a mentor to me for many years.  I've had the pleasure and opportunity to work with Jack for 4 years. Jack is a great teacher who takes complex 802.11 standards and breaks them down so almost anyone can understand the concept at hand. I'm excited for you brother. Great job and job well done! Put another notch in the belt!

Interference Types

BLUETOOTH
 

Microwave Oven
 

Cordless Phone

JAMMER!
 

IEEE 802.11a/g/n Reference Sheet

 

« Disable your Wireless NIC when plugged into a wired connection!?!? | Main | PSM (POWER SAVE MODE) LAB »
Sunday
Jul192009

You have wireless client issues? What is your Wireless NIC system event log telling you?

Did you know when you associate to an access point your wireless NIC reports to the OS a 4201 code? Or, when your wireless NIC loses connectivity it reports a 4202 code?

In this nugget, we will review the System Event Log for a wireless NIC. More specifically the 4201 and 4202 event code. I will also reproduce these event code in our lab.... Just another tool to have in the handbag when troubleshooting! Enjoy

 

 

Reader Comments (1)

Good nugget. I didn't know that was in the event viewer.. I am having an issue with a few Dr.offices where they report being disconnected. I could look at this to see if the times they are giving me match up with the viewer. Not seeing any deassociation on the controller logs so maybe this would be able to help.

July 27, 2009 | Unregistered CommenterWireless_Rules

PostPost a New Comment

Enter your information below to add a new comment.

My response is on my own website »
Author Email (optional):
Author URL (optional):
Post:
 
Some HTML allowed: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <code> <em> <i> <strike> <strong>