Sorry for the long post, but I wanted to document what happened. I just got an 86U, and immediately put 384.6 into it. Then spent an afternoon configuring all of my DHCP settings and static DHCP assignments, my VPN, and my VPN assignments. I then saved the JFFS file to my PC. I did all that off-line. Once done, I put my sparkling new router online in my network. BTW, my speedtest through the VPN increased from 20Mb with my old router to almost 70Mb on a line that is about 75Mb, so I'm getting the VPN speed benefit because of the BRCM SoC. Anyway, after a day, I tried to play with the USB settings, but after a reboot, I found that all my DHCP assignments were gone. I then re-entered them, then did something else (sorry, I cannot remember), went back to DHCP and again all the assignments were gone. Rebooted, but still gone. I then downloaded the JFFS settings a 2nd time, then opened up the NVRAM folder, and saw that the dhcp_staticlist file was there and that it contained all my previous assignments. So I deleted that file from the JFFS folder in the router using WinSCP, then tried to copy the previous dhcp_staticlist file back into that folder, but got a popup that there was insufficient room for that file. Hmmm. So I looked around the JFFS folder, and found an icon file that was about 64MB (28c68e3adedf.ico). I deleted that file (if it caused harm, I was going to reflash the firmware anyway, so why not try it), then transferred the dhcp_staticlist back into the NVRAM folder, and this time it transferred fine. Rebooted the router, and now all my DHCP assignments are there. BTW, before I deleted that icon file, I did a Properties on that JFFS folder and it reported the used storage to be 64MB. Now with that icon file gone, and with the restored dhcp_staticlist file there, the JFFS used reports about 1MB. So I wonder, if some of this flakiness of 384.6 is due to running out of room in the NVM because of that large unnecessary (?) icon file? Should I have done something that I did not do that would have deleted that file?