I have been having issues with devices maintaining connections to my 5Ghz SSID on multiple devices. After the latest Android update, it seems my phone is able to maintain reliable 5Ghz connections but my Windows 10 laptop was still having issues. After some searching I decided to update the driver and see if it made a difference. Its still too early tell for sure, but it seems the new driver is doing better. The AP in question is a Synology RT2600ac with SmartConnect disabled, running 2 separate SSIDs for 2.4Ghz and 5Ghz. Support has been of absolutely no use. They repeatedly stated they didn’t see any disconnects in the logfile dumps.
Normally I would only stay connected, if I could connect at all, for a few minutes.
System Manufacturer:LENOVO System Product Name:20L50017US BIOS Date:05/22/2018 BIOS Version:N24ET39W (1.14 ) OS Build:17763.1.amd64fre.rs5_release.180914-1434
The driver version I was having an issue with: Device: Intel(R) Dual Band Wireless-AC 8265 Current driver version: 126.96.36.199 Driver date: 6-29-2019
The latest version in testing: Device: Intel(R) Dual Band Wireless-AC 8265 Current driver version: 188.8.131.52 Driver date: 8-26-2019
I ran “netsh wlan show wlanreport” to get some insight on what was going on. BOLD items below are 5Ghz specific errors and warnings. The 2.4Ghz SSID has been working without issue.
Session Success/Failures Status Count Successes 2 Failures 10 Warnings 16
Disconnect Reasons Reason Count The driver disconnected while associating. 8 The network is disconnected by the driver. 7 The network is disconnected because the user wants to establish a new connection. 4 The network is disconnected by the user. 2
The error I was repeatedly getting while trying to connect to the 5Ghz SSID is: Failure Reason:The driver disconnected while associating.
The red Xs in the image below are all dropped connections to 5Ghz.
Monitoring this little switch via snmp and the polling times shot through the roof when I added it. Turns out this thing does NOT like v2c snmp. Set whatever you use to poll snmp to use v1 and all is good. From 20 seconds to 80 with v2c when I added it, back down to 20 when I went to v1.