Hello @_sanjad ,

Welcome to our community.

It looks like you've already done a lot of troubleshooting; the following steps might help pinpoint the cause more quickly. Please continue with the following steps:

1. Check link speed: Download speed is typically 30-50% of the link speed. Please follow this guide to check the link speed between your adapter and router to determine if the current speed is normal: How to check the associated/link speed on a wireless client

2. Optimize router location: Place the adapter within 10-15 feet (approximately 3-4.5 meters) of the router, remove any obstructions in between, and adjust the router antenna to a 45° angle or perpendicular to the ground.

3. Check router Wi-Fi channel settings: Congested Wi-Fi channels can reduce Wi-Fi speed. Please adjust your router settings to the following recommended configuration:

• 2.4G: Channel 1/6/11, Bandwidth 40MHz

• 5G: Channel 36/40/44/48, Bandwidth 80/160MHz

(For assistance adjusting router settings, please contact your router's technical support.)

4. Confirm that the driver is the latest version: Please visit install the latest driver, Archer TX20U Plus_V1_5001.19.128.1_Win10_Win11[Beta]

Best Regards.

Hi  @_sanjad ,

Thanks for getting back to us. 

The intermittent nature of these speed drops and ping spikes strongly suggests an unstable connection, this sounds rather disheartening.

Based on your description, here are some additional steps to try:

1. Disable your computer's built-in Wi-Fi adapter (if present):
This is crucial as built-in adapters can cause interference with your TP-Link adapter. Go to Device Manager, find any other wireless adapters, right-click and disable them, ensuring only your TP-Link adapter is active.

2. Disable power-saving mode for the adapter:
Power-saving features can cause the exact symptoms you're describing • intermittent drops and performance issues. To disable it:
• Open Device Manager
• Find your TP-Link wireless adapter
• Right-click and select Properties
• Go to the Power Management tab
• Uncheck "Allow the computer to turn off this device to save power"
• Click OK

In addition, have you tried the beta driver in my last reply? If yes, here is another newer driver that you can try: Archer TX20U Plus_V1_5001.19.128.3

If the new driver doesn't help, we can escalate your case to an engineer if you'd like to continue troubleshooting with us. Of course, we also respect your choice if you ultimately choose to return the product and hope you can find a product suitable for your usage environment.