I have just got my new Marantz NR1602 AV Receiver installed. I couldn't find an owners thread and so thought I would start one I am running it in 5.1 mode with the following speakers: 2 x B&W DM 603 S3 (main), 1 x B&W LCR600 S3 (centre), 2 x B&W M-1 (Surround) and a Rel Q150E (Subwoofer). I am mainly pleased with it so far but am having problems updating the firmware on it. The internet connection works fine e.g. I can get various internet radio stations OK. It recognises that there is a firmware update available but when I start the update process it puts up a message saying 'authenticating' which stays for a few minutes before displaying the message 'Connection Lost'. Has anyone else managed to update the firmware OK or maybe offer some suggestions of things to try?