We deploy an SSO pair of 5520's in our DC and DR sites running 184.108.40.206 code.
Our Enterprise WLAN had been somewhat reliable until several months back. Suddenly users began creating service tickets complaining that one or sometimes both of our production SSID's would deny them connectivity.
As I gathered symptoms while troubleshooting this I found that when this failure did manifest itself, that no parallel could be drawn with respect to device and/or model of access point as being the culprit.
Back on 11/21/2020 I remembered reading a post form "sagarshaha" stating that he had trouble (specifically with Apple devices) and he had played with (FT) Fast Transition settings in an attempt to resolve his intermittent connection issues. But never saw a follow-up as to if he had seen confirmed success in his trials.
Our intermittent behavior was different than his, in that ours was exhibited on various device models and OS types (Win10, Android, Apple), but I thought if I created an alternate SSID for this test (so as not upset production) and acquire a sampling of wireless behavior (absent FT) in a very granular test group, I could then have users use this alternate SSID at precisely the moment they were experiencing the "failure to connect" type of symptom.
Intermittent issues are the worst, Right??? I mean they're hard to troubleshoot because they may not persist long enough for you to gather any confirmation of your fix. And also hard to know if the issue has been resolved, because it takes so long to determine if your fix was really instrumental in the resolution.
In any event, over time I began seeing good results in testing with the new SSID without Fast Transition, and later created a deployment event to employ this condition on the Prod SSID's.
Since this time, I have not had a single "failed to connect" symptom reported from a client device.
I cannot comment as to why this symptom was so intermittent, it was very random all over the country for us, some sites never experienced the condition, others 3 times a week, etc.
At a later release I see myself re-deploying (FT), possibly 8.5.X (or higher), but for now supporting legacy APs I cannot upgrade, so I knew I had to find a suitable alternate solution.
Hello, Anyone can explain the picture of AP signal. The picture shows signals strength in different angles so that we can know how strong the signal is at different angle. Do you think the picture show signal strength at some distance away from the AP? Fo...
We currently have a Cisco WLC 4402 with approximately 50 Aironet 1142 APs . When we we provision an AP both our guest and secure wlans are automatically setup on the APs. Is there a way or configuration where we could have certain APs "not" have the secur...
Hello, I'm using network environment based on AIR-AP3802I-E-K9 with WLC 5529 220.127.116.11. Could someone please tell me why some client devices which are using 2.4Ghz associating with AP only based on 802.11g?I've in NIC requirements tha...
i have tried to search everywhere without been able to get a real answer, does the vWLC (Cisco Virtual Wireless Controller) support the 802.11ac Radio Module installed on the 3600 and 3700 Cisco AP´s ?i can see the M module mentioned on the compatibi...
Hi,We have Catalyst 9800-40 WLC , and we are facing the issue "Two Access Points with same name are not able to join controller "I tried to add new access points . Initially APs joined controller and their MAC ID was shown in Access point list. ...