Try these recomendations:
In IE configuration add the url of the access point in the Trusted sites, remember if you don't have https you will must unselect the captcha "require server verification (https)"
Turn off the firewall of windows, try in your server and in your personal computer.
Try changing the configuration on the QMC (QlikView web servers)->QMC->system->setup->Qlikview web servers->access point->access point settings->Full browser and small version device.
What type of error show you when you try to print?