Fvs318gv2 connectivity issues

I am having the EXACT same issue as the above. I purchased this router because my old one (FVS366G) didn't have the WAN-LAN throughput that Charter now offers in my area.  I have had the FVS336G for YEARS and it still works flawlessly, but the speed tops out at 30mbps where ther FVS318Gv2 hits 60mbps (what I am paying for)

It froze on me during the initial setup.  I would plug in everything and it would work for about five minutes then the internet led light would go out and nothing would work.  I couldn't even access the web based GUI unless i rebooted it.  It took me about an hour and I was able to figure out the sequence to plug in and turn everything on and it worked perfectly for about 3 months.

Last month, I was uploading 300-400 photos into OneDrive and my entire network shut down.  I unplugged all the network cables from the FVS318 rebooted it, then plugged in the cable modem, rebooted it, then plugged in my desktop, rebooted it.  then i plugged in the other computers.  I continued trying to upload the photos and it would lock up again and the internet light would go out.  I went through the steps again, but this time, I only plugged in my desktop.  I could get the router to lock-up every time.

I finally rehooked up the FVS336G, didn't have to reboot or unplug anything and I finished my upload.  The next day, I tried to setup the FVS318 again and after several tries of unplugging and replugging and rebooting, it finally "took" and the internet light would stay on for longer than 5 minutes.

Interestingly enough, the internet light went out while I was typing this.

I went to create a new thread on this forum and I stumbled upon this one and it looks like we are having the same issue.  I tried to download the firmware in your link (I’m currently running 4.3.3-6) but get this error:

Also, we had some storms last week and the power went out (yes, I have the router on a surge protector) But it takes me about an hour to unplug/replug/reboot everything until it works.  With the old FVS336G when the power came back on, so did the internet.  I didn’t have to unplug/replug/reboot anything.

Here are the steps I have to take just to I could finish this post.

1)turn off unplug everything from the FVS318.

2)  Turn on the FVS318 wait for the test light to go off.

3)  Plug in the modem and turn the modem on, wait for it to reboot and the internet light to come on.

4)  Plug in the Ethernet cord from my desktop.  If I’m online for more than 10 minutes, then I plug in the rest of the computers.

It was delivered from Amazon on January 16th.

I'm at my wits end, please advise.

Ricky