It is a must to control/change all ports (https & co) in web-admin. All bought cams are useless as for me now as I need port 443 for exchange (OWA) and finally all external exchange clients can`t log in anymore as 443 is blocked by the cams via router`s UPnP.
Funny thing 443 is portforwarded to the servers IP but the cams force the router, as trying to call the port till it`s opened by UPnP. One time opened, it`s blocked - the UPnP-entry (443) blocks this port till I manual delet all entrys in table. Then external exchange clients are able to login again to the server.
So only solution is to control this port - change it camera side to another like you have it on other models!!!
Thanks - same I posted to the DCS-5222L as this model is also same firmware & have same bug!