I was using an Actiontec MI424WR Rev D with no problems what so ever. I literally loved my FIOS Internet connection with all of my heart.
Then I moved and they installed the new Rev E router. Supposed to be all that and a bag of chips. It has a dual core 64bit processor that is supposed to make your connection more stable since it can handle streaming more data to the various components connected to it like your TV's, Laptops, Phones, Computers, etc...
The first thing I noticed (I am a webmaster by trade) is that whenever I connected via FTP to just about any server I owned or working on, it timed out before working. Time stamped it would look like this:
Time - old action - new action
00:00 - click connect - click connect
00:01 - connecting - connecting
00:02 - connected - waiting to connect
00:04 - opening a directory (listing) - waiting still
00:05 - opening a file for editing - waiting
00:20 - save the file and test in browser - waiting
00:25 - need more edits - waiting
00:30 - edits made, saving - timed out connection
00:32 - previewing in browser - click to connect again
00:35 - done - just finally connecting
Something that should take less than a minute ends up taking much more because when I go to save I usually have to do this all over again if I take more than a minute or two during the editing or last interaction with the server.
I have tried FF's extension for FTP, Dreamweaver, Cute FTP and more and everything has the same problem!
So I switched to my old router.. Rev D... supposedly it is supposed to be crappier...
FTP works like a charm.. In fact, I just tested it and I was able to do a listing immediately. Opened a file and saved it in 2 seconds...
So Verizon, your new router that was supposed to be kickass, sucks ass!