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.
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
* Open the dropdown for '802.11g radio' and do the same changes as the step above
* Save Configuration
I get the same error using two AP 103 in instant mode.
Does anyone knows the right fields at the instant mangement page?
Since you have a different scenario, it would be best to start a new thread.
@ckd wrote:I get the same error using two AP 103 in instant mode.Does anyone knows the right fields at the instant mangement page? Thanks
Hello,A lot of clients on our network have been having a similar issue, and the common denominator is that they are connecting to the AP-205 .We run ArubaOS 8.6 today.I did try to make the changes as has been suggested to what I thought was to just one AP group, but then noticed in the dashboard the number of clients quickly dropping, and that the change was to all the groups.
So I quickly change back again, and noticed that the number of clients came back again in the dashboard.What could be my mistake here ?Thank you!Kind regards
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