Yes it is our provider. We canīt use port 80 or the orthers. I canīt understand why dcs2230 can nor be set to port 805 when dcs 2121 can. There must be a workaround.
Her is a screen shot from the dcs 2121 manual:
If port 80 is not available (for example, if you are already using port 80 to run a Web server or
your ISP blocks access on port 80*) you MUST open a second port and designate a new Web
server port (800, 801, 802, etc.). Similarly, if port 554 is not available, you will need to open a
different port for RTSP.
Note: Be sure to take note of these settings since these same settings will be used to configure
your router.
Thanks