I've tried it on the ptz 59430u and it works fine. Well i have a problem with smartir that turns off the LEDs after zooming 7x and if i zoom zooplus always stay on all the leds even 1x zoom.
Then I noticed that the webgui after a while disconnects and I have to re-enter the password.
The rest works all ok autotrack ok
Have you tried setting the default button in the Webgui, then power cycling the cam?