Have you switched on the WiFi button at the back of the modem? If WiFi is switched off, you can not change SSID Broadcast.

Hi. Is your TD-W8960N V1? I hear that there is no firmware updated for V1 or V3. Is the modem a new one?

MisiuF1 wrote there is the same problem with WDR-3600 router and Windows 8, printer utility causes BSODs every reboot Do you download the printer utility for Windows 8 from TP-LINK website? Maybe you...

Hi. See this thread: http://forum.tp-link.com/showthread.php?20899-Modem-Restarting-Randomly-itself-Automatically....(its-very-Annoying-me)-NEED-HELP

Hi. There may exist compatibility issue between TD-W8968 and your devices in respect of media server. What is the model number of the portable HDD? What are the formats of the videos?

Hi. "I tried using both the internal ip and the dynamic address, but still could not get a connection." Which internal IP and dynamic address have you tried? The internal IP of the server?