I have 4 2332 and 1 2532 all with the latest firmware updated earlier this year. The nvr is 7608nei2. It was working until 8pm eastern time on the 22nd and then stopped. I didn't even realize it. No idea what I did but that day I was simply reviewing some footage. No changes were made. I have Verizon, ntp works no problem, the cameras are accessible inside and out I'm using the virtual ports and then doing internal forwarding. If I use gmail with 465 and ssl it says failed to connect test server, if I use 587 and no ssl it says testing failed. Created a new gmail account turned off extra security nothing. Tried yahoo, nothing.