I have a small home network with three computers, a printer and the spd 8020 NAS. Everything works fine and there is no problem reading and writing to the NAS. Now I want to change the settings to make upnp possible. When using the "manage" function I cannot get access to the control. The response from firefox or explorer is "can not connect". so the usual request for name and password does not appear. Using a lanviewer everything is visible, including ip address and mac address of the NAS. Pinging shows no problem. Approching the NAS directly by using the ip gives the same result: no connection.
I am not a computer expert so this was all I could do myself. What else can I do to enter the control page again?