Wondow problem/central locking

[Tweetdriver63]

Forgive me. I know this is probably a subject that has been covered several times here, but I didn’t find what I was looking for with my first search.

This morning I went to put the top down on my 986, and when I opened the latch, the windows didn’t drop. I re-latched and unlatched it several times, and nothing.

The top itself works fine.

The windows don’t lower with the window switches or using the key in the door.

The windows do drop when the door latch is pulled and go back up when the door closes.

There are two chirps from the alarm horn when I try to lock the car, and the doors do not lock with the remote.

I know the two beeps indicate a malfunction.

Is there anything I can do/check before I have to take it to a shop or the dealer?

I have a Durametric tool (enthusiast, not Pro).