I have SD-Access fabric network with DNA Center. I have one main wireless network which is fabric as well and 802.1X authentication.
I use 3500 series WLC and 1850 series APs. The problem is as shown below picture. I got constant timeouts in my connection with WiFi. I checked WLC and no interference shown at all. DNAC also shows good connection for wireless. I stuck and do not know how to continue with troubleshooting. First thing I thought that it can be caused by microwave in kitchen which is 3-4 meters away from AP that I am connected but again I face this problem even when no microwave is used and again no interference shown in WLC monitoring page.
First is "Amazon" domain ping second Amazon IP ping, 3rd is my DNS Proxy ping and fourth is Anycast GW ping.
PS.: I tested the same connection from the workmate`s laptop who sits to next to me and connected to another AP which is not so close to kitchen as I am. is it possible that microwave really creates interference but I do not see it in WLC?
Moreover I have tested from another laptop in my desk which was connected to same ap and did not have the problem at all while I was facing the drops.
May anyone help me with troubleshooting steps?
Thanks in advance!
You have tried all the option to diagnosis the issue. this could be Laptop Driver compatability
Compre with working Laptop Wirelss card vs not working Laptop so yoiu will see some difference.
If you think site has interference (in your case i see it was not) - do site survey to confim all good.
Actually I think problem is not related to laptops,
because today morning it went global and people complaint that they cannot work normally, network goes and comes. Moreover yesterday I tested the connection from 2 identical Laptops with same Wireless NIC and driver. One had drops while other one perfectly smooth.
Thank you i have given feedback based on the input provided, can you check both working on same frequency ?
like 2.4 or 5 GHz ?
required to review config - Couple of question, is this working failed or not working from the time instalaltion ?
or is there any upgrade on the controller? or AP ?