Hey @Porcap , 1-2Mbps is an incredibly low throughput rate that makes me believe these clients are connecting using 2.4Ghz. If you take a client that historically has high throughput and put it next to the client that has low throughput, and the device that has high throughput continues to have high throughput (even after cycling it's wireless adapter)... Try this. On the device with low throughput go to ap.meraki.com OR Go to network-wide > clients, select the client with low throughput, and check it's overview page. If either says it's connected using 2.4Ghz AND the clients summary page shows that the client supports 5Ghz. You need to focus on why it's connecting to 2.4Ghz as the decision is more or less up to the client with minimum bitrates set as low as yours are. Since you have AX APs and mentioned the net adapters are older...Two things you can try Under the RF Profile, Disable AX for both 2.4Ghz and 5Ghz. See if the client connects at 5Ghz and see's improved speed afterwards. Ideally this should NOT be your permanent solution as you lose the benefits AX provides. UPDATE THE NIC DRIVERS. I can't tell you how many times I've seen issues with older clients connecting to AX APs that were caused by having old drivers. Intel has a tool that will find outdated intel NIC drivers and install them for you. Link Alternatively, if that doesn't find anything. grab the Wireless Card Model number under windows device manager and search for the drivers on Intel's support site.
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