AX201 - connection speed reduced after update

[SirMatthew]

I have a Dell Vostro 15.  The wireless adapter is an Intel Wi-fi 6 AX201 - 160 Mhz.   I recently updated the driver.  I downloaded it from the intel site instead of the Dell download because I noticed the Dell download had an older version of the driver.   I kept getting messages I needed to update my drivers Dell, or I wouldn't have made any changes. 

Since I updated to the latest driver, my laptop's connection speed to the router is stuck at 866.7mbps, not a bad speed, but prior to changing anything, I was consistently connecting at 1.2gbps.   

I have tried the following steps:

1. I uninstalled the adapter in Device Manager and rebooting to have it automatically install it again.  
2. I reset my modem/router.  Note: I am about 6 feet from the modem/router. 
3. I rolled back the driver to the previous one that allowed me to connect at the higher speed, but it still will not connect at the previously higher speed.   
4. I double-checked the Advanced properties on the adapter as specified in an article I found here, regarding  802.11a/b/g wireless mode and 802.11n/ac/ax wireless mode, and channel width is set to auto.  

My concern is this: I have ordered a new modem/router combo that actually FULLY supports Wifi 6 so I SHOULD be able to connect a bit faster than I used to, in addition to the other benefits of being able to manage my wifi network locally.  My ISP currently controls the network and I can't login to the modem/router to change any settings.   My fear is that something is causing a conflict after I updated the drivers and a few updates from Dell, though those were NOT related to wireless. 

I did download the System Support Utility and have attached the log here.  

Any help would be GREATLY appreciated. 

Thanks! 

[JedG_Intel]

Hello SirMatthew,

I understand that you're having connectivity issues after updating the drivers to a latest version. Please share the information below for me have a better approach on this issue.

1. Have you tried using the OEM drivers?

2. Why did you update the drivers, are you having issues with the previous one?

3. What was the last known working driver version?

4. Is this the original adapter that came pre-installed in your system, or have you changed/installed a new adapter recently?

5. Are you able to reproduce the same issue while on hardwired connection?

I look forward to your response.

Best regards,

Jed G.

Intel Customer Support Technician

[JedG_Intel]

Hello SirMatthew,

I wanted to check if you had the chance to review the questions I posted. Please let me know at your earliest convenience so that we can determine the best course of action to resolve this matter.

Best regards,

Jed G.

Intel Customer Support Technician

[JedG_Intel]

Hello SirMatthew,

I have not heard back from you so I will close this inquiry now. If you need further assistance, please submit a new question as this thread will no longer be monitored.

Best regards,

Jed G.

Intel Customer Support Technician