I’ve literally talked to the cable company every day for a week, we’ve done all sorts of diagnostics and today they replaced the 1GB router and, while it’s somewhat better, I am still having the same issue. Has anyone run into this?
Streaming seems fine on Netflix/Amazon/ Pandora; ping and speed tests are great- when they connect.
The issue is web surfing, you click to go to a site and get a white screen saying no IP address, then a white screen saying DNS issues, then after 1-10 clicks, the site comes up.
It’s happening on PC & MACbook & iPhone. and it only began April 1, previously it was great.
Honestly the company seems to have no further ideas, so am wondering if any CC techie genius has experienced this and knows what might cause it.
Also, there is one thing showing up using a lot of bandwidth when they check, Limelight, which seems to be a content delivery option, but we have no clue what app or program is using it.
@somemom: I had this exact problem, Limelight notwithstanding, and went all over the internet to try and resolve the issue. I go into my router settings often and identify the MAC addresses of the devices connected to my router, and though I have encryption and firewall set up, every once in a while I have found a device unknown to me.
So, I block that.
But…last month I played around with some settings that I cannot even fully understand, something to do with
-incoming and outgoing connections on Port 80, and
- blocking things on UDP/443 and
-allowing only outbound connections from the internal connection out to the internet for QUIC.
I do not know what these things mean, but I do know that when I went into my router network settings I deselected anything and everything which allowed for incoming connections where ‘80’, and ‘443’, were allowed.
It cleared my problem up in about 15 seconds after I resumed using my computer.
I’m going to send you a PM with a link to this page I found, and you can have someone who understands this stuff (literally, I was so desperate I just went in and said ‘what the heck’) decode it and guide you through it if you want.
We had sporadic weird issues for months. The cable company had no idea what was going on. Eventually everything just stopped working. Turns out we had a problem with the line coming into the house.
I have had odd router/modem issues in the past where I’d mysteriously lose wifi (I have one desktop hard wired).
A cable guy who came to replace it a while back said baby monitors will interfere with routers/modems. I am surrounded by young families here. He said the easiest thing to do is turn it on and off again (I know, I know lol). But maybe once every other month, I’ll lose wifi and that does the trick. It’s something about how the router/modem looks for a different channel that isn’t as busy.
Not sure that will help your specific problem, but it might be something to try (or help someone else).
Have you tried changing your DNS address? That’s the first thing I’d try, and I’d do it even if it’s not your prime issue. Your ISPs DNS is normally used by default, but they can be slow and unreliable. Here’s some info and instructions. https://www.lifewire.com/use-dns-to-fix-web-page-not-loading-2260193
But rather than use OpenDNS as suggested there, you might try Cloudflare (1.1.1.1) which is fast, reliable, and privacy oriented. For phones and tablets, you can change the DNS manually as described in the above link, or Clloudflare has an app you can download that will do the work for you with a simple on/of switch. https://blog.cloudflare.com/announcing-1111/ https://blog.cloudflare.com/announcing-1111/
Thanks, @1dreamer, I will check it out. I guess I’d need to do that on every device since it’s affecting them all!
@somemom - Do you know how to log into your router to change settings? If you do it at the router level, you won’t have to do it on every device. Just look for the setting related to DNS. It’s probably set to Automatic, so change it to Manual and type in 1.1.1.1 and 1.0.0.1 for the alternate/2nd one. Here’s another link that gives instructions how to do it on various brand routers as well as on individual devices using Windows, iOS ,and Android, etc. If your router brand isn’t listed there, you can usually google to find out how to log into the one you have. Hope this helps! Worth a shot. 
https://www.theverge.com/2018/4/3/17191538/how-to-change-dns-routers-windows-mac-ios
BTW, if it’s your DNS, it would affect all devices on your network and not just one - another reason I think that could be your issue from your description of the white screens related to IP and DNS.
OK, now I think my issue is fixed. I called the cable company and it turned out the new router was not properly registered, or some such thing, so they could not login to it. We did a hard reset, got that fixed, and I had them set up DNS to Google instead of theirs and the issue has not happened since.