Preempt-rt wifi de-authentication issue

I've been testing the Preempt RT kernel on my Debian 8.2 system.

I seem to have a problem with the wifi deauthenticating. It seems to de-authenticate after a few hours of non-use.

The real time kernel generates an error message that it de-authenticated due to "error 15" which is a "four-way handshake error".

When I switch back to the kernel installed with Debian 8.2, there seems to be no problem.

Any Ideas how to fix this error in the real time kernel?

What Preemt-RT kernel version?

The PREEMPT-RT is
linux-image-3.2.0-4-rt-686-pae - Linux 3.2 for modern PCs, PREEMPT_RT

I'm running it on an old Dell Inspiron Pentium4 computer from about 2002.

You might try a newer kernel (3.2 is pretty old)

Thanks. What I did was to use the one from Wheezy. I'll looks for a newer version.

Lots to learn!