Hi  @gigabyte091 

Fristly, we don't have similar feedback that the EAP615-wall and Intel AX200 have any incompatibility issues.

This could be due to several reasons:

1. Driver Issue: Make sure the drivers for your Intel AX200 card are up-to-date. If not, update them and see if the problem persists.

2. Interference: There could be interference from other devices or networks. Try changing the Wi-Fi channel on your router/EAP to see if that helps.

3. Power Management: Sometimes, the power management settings on your laptop could cause the Wi-Fi to disconnect frequently. Check your power management settings and make sure they are not set to turn off the Wi-Fi to save power.

4. Faulty Hardware: If none of the above solutions work, it could be that your Intel AX200 card is faulty. Consider replacing it or contacting Intel for further support.

5. Firmware Update: Make sure your EAP-615 and OC200 have the latest firmware updates.

Remember to always backup your data and settings before making any changes to your system.

  @Vincent-TP 

Hello, thank You for fast response. Firmware on both EAP and OC are up to date. Drivers on AX200 are up to date. Power management settings are set on performance. There is no interference as I live in a rural area so no nearby wireless networks exist.

This problem only occurs when PPSK is used.

  @gigabyte091 

Thank you so much for taking the time to post the issue on TP-Link community!
To better assist you, I've created a support ticket via your registered email address, and escalated it to our support engineer to look into the issue. The ticket ID is TKID240847247, please check your email box and ensure the support email is well received. Thanks!
Once the issue is addressed or resolved, welcome to update this topic thread with your solution to help others who may encounter the same issue as you did.
Many thanks for your great cooperation and patience!