Wireless Access

Reply
New Contributor

Intel Dual-Band 7265-N constantly dropping connection on AP-205 (EAPOL key exchange issue?)

Hello,

We have an Aruba network setup with a 3200 controller and AP-205's spread around the building.  There is a wireless laptop lab of Dell 3350's that have the Intel Dual-Band 7265-N, running 64bit Windows 10.  These laptops can connect to 3 different AP-205's around them.  There are other model systems connecting to these same APs with no issues, so it is isolated to this 7265-N NIC.  They can use the internet/network but users are complaining of intermittent connectivity issues and in their taskbar wifi icon of 'no internet connectivity' even though it is connected to the AP. If you go into Airwave and look at the clients' association history, they are constantly dropping connection from one AP and connecting to another.  Most of the time these are in exactly 10 minute increments (example: 9:18, connects to #1 AP, 9:28, connects to #2 AP, 9:38 connects to another, etc etc.).

The 'signal quality' line graph for the clients show a very choppy connection.

 

If you go into the Event Viewer for the client laptops they show numerous entries for 6105 - deauth after EAPOL key exchange sequence

 

Fixes I have tried that do not work include:

 

-Updating the NIC driver for 7265.  I have tried old and new versions of the driver and using versions for Win10/Win8/Win7 and none fix the issue.

-Updating the BIOS on the laptops

-Disabling bluetooth on the NICs

-Swapping out the AP 205 in that room in case it was faulty

-Set roaming to low, use only 20HZ and B/G frequency.

 

The only thing that has fixed our issue is replacing the AP-205 in that room with one of our old AP-105s.  The clients now connect consistently with the 105 and the 'signal quality' graph is a nice steady line.

 

That basically boils it down, in my opinion, to some sort of issue between the AP205 and the 7265-N adapter in regards to EAPOL key exchange/authentication (since event viewer showed that).

 

Any help would be greatly appreciated.

New Contributor

Re: Intel Dual-Band 7265-N constantly dropping connection on AP-205 (EAPOL key exchange issue?)

Fix:

 

On your Aruba controller:

* Go to 'Configuration' tab. 

* On the left pane go to 'AP Configuration'.  

* Select your AP Group from the list. 

* Open the dropdown for 'RF Management'. 

* Open the dropdown for '802.11a radio'

   -select 'adaptive radio management (ARM)

   -make sure the 'Scanning' checkbox is NOT checked

   -apply changes

* Open the dropdown for '802.11g radio' and do the same changes as the step above

 

* Save Configuration

 

 

 

Guru Elite

Re: Intel Dual-Band 7265-N constantly dropping connection on AP-205 (EAPOL key exchange issue?)

Disabling scanning no longer feeds data to ARM and Client match from other channels. It also makes IDS/IPS less usable on channels that your access points are not on.

*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
ArubaOS 8.3 User Guide
InstantOS 8.3 User Guide
Airheads Knowledgebase
Airheads Learning Videos
Search Airheads
cancel
Showing results for 
Search instead for 
Did you mean: