My 5GHz Connection breaks down every few seconds

[AHeff2]

I have bought a PCE-AC55BT and installed the newest version of the Dual Band Wireless-AC 8260. The problem now is that the Connection with the 5GHz network keeps breaking down every few seconds. I already tried reinstalling it cleanly as instructed, but it still doesn't work properly. So my question would be: How can I make the 5GHz connection work properly?

[Alberto_R_Intel]

AHeff2, Thank you for posting in the Intel® Communities Support.

In order for us to provide the most accurate assistance, we just wanted to confirm a few details about your system:

What is the model of the motherboard?

If this is a laptop, what is the model of it?

What is the model of the Router?

Is this a new computer?

Was it working fine before?

When did the issue start, since the day you installed the Intel® Dual Band Wireless-AC 8260 card?

Which specific Windows* version are you using?

Does the problem happen at home or work environment?

Any questions, please let me know.

Regards,

Albert R.

Intel Customer Support Technician

A Contingent Worker at Intel

[AHeff2]

Thanks for the rep

The Motherboard is an Strix Z270G Gaming Motherboard.

This is not a Laptop.

We have a Vodafone Station with the name TG3442DE.

The Computer is 2 years old.

I had an older WLAN Card that worked fine.

The Issue was there since I installed it.

I am using Windows 10, Version 1909, Build 18363.900 .

I checked it and on every other device the connection to the router works.

The problem happens at home.

It is working completely fine with 2.4 GHz.

I hope that those informations are enough and I thank you in advance.

[Alberto_R_Intel]

AHeff2, Thank you very much for providing that information.

Based on the information you gave us, there is a possibility that the problem might be related to the wireless antennas, so we just wanted to confirm, did you purchase the Intel® Dual Band Wireless-AC 8260 as a kit with the brackets and antennas or did you purchase the Intel® Wireless card by itself and the antennas separately?

Regards,

Albert R.

Intel Customer Support Technician

A Contingent Worker at Intel

[IntelSupport]

Hello AHeff2, I just wanted to check if you saw the information posted previously and if you need further assistance on this matter?

Regards,

Albert R.

Intel Customer Support Technician

A Contingent Worker at Intel

[Alberto_Sykes]

Hello AHeff2, Since I have not heard back from you, we are closing the case, but if you have any additional questions, just reply back or post a new question.

Regards,

Albert R.

Intel Customer Support Technician

A Contingent Worker at Intel