Hi All,
Please excuse the length of this post as we've been dealing with this problem for a month now. We've had Aruba engineers on the phone. The entire infrastructure team has been looking at this daily/hourly, and we still have no pattern to identify in order to fix the issue.
Problem: We've installed mostly 315's and 335's in a three story building. We had a professional heatmap done and installed 36 AP's and have about 140 clients connected at any given time. Since installing this system, we've dealt with an increasing number of "disconnects". These reports come from users being connected to "WePresent" devices and GoToMeeting presentations. They know, very quickly, that they've dropped wireless. The issue is, though, we do not see the user actually disconnecting from the AP. Their machine shows one of two errors:
1. Error 11004 Wireless security has stopped.
- This error will show up at the exact time the user reports their connection being interrupted. Our suspicion, and we've been able to confirm this on a few machines, is that they lose the ability to get to the default gateway.
2. WLAN AutoCOnfig detected limit connectivity, performing Reset/Recover.adapter
The user loses the ability to access anything, at this point. They have to wait a few moments for 1. the connectivity to return or 2. the adapter finally disconnects from the SSID.
Solutions we've tried:
1. The Aruba engineers have done the normal steps with our system. They've tweaked the power settings on the radio. We've monitored the VController to watch clients when they disconnect and have found they don't actually drop during this.
2. We've updated drivers to the latest, repeatedly. We've changed out Wireless NIC cards in machines. We thought we had a lock on a certain type of card, but over time, that has completely gone out the window. It seems to be affecting all types of cards and computers.
3. We turned off band steering temporarily.
4. We had an IDS system called Airtight on, but we turned that off in the beginning of troubleshooting.
5. And, of course, our Aruba system is as up-to-date as possible. Our computers are up-to-date running Windows 10.
I'm not sure what else to provide. Any help would be great. We're grasping at straws. So many straws that I'm starting to think it's rats running around the building cutting off wireless and then taping stuff back together. Any additional info you need from me, I can provide it. We've gathered a good amount of data.
Thanks in advance.