Hi Mario,
80 and 443 are the default port configurations for HTTP and HTTPS access respectively. If you'd like to use these ports for data port forwarding, then please change the ports for HTTP and/or HTTPS under Configuration->System to something else.
Please see this thread on this topic: http://community.cambiumnetworks.com/t5/ePMP-1000/Can-t-Port-Forward-443/m-p/52468/highlight/true#M5742
Let me know if you have any further questions.
Thanks,
Sriram