Cannot visit my own website on Cox wifi
I own a website (www.byclue.com) which promotes nutritional knowledge and products. It is hosted by SiteGround. Right after Thanksgiving, I can no longer open the webpage on my home Cox wifi (I can visit other website like google, Yahoo, etc). I tried all devices (PC, iPhone) and none of them worked. The other Cox users in my area cannot open it either. However, if I switch to other ISP (AT&T, Comcast), I can open it with no problem.
I contacted Cox customer service multiple times this week through Chat and phone. Since it is not a Connectivity issue, they blame it to my hosting company. My hosting company double and triple checked everything in their end and see no issues. I asked Cox to have a senior technical person to talk to me, or at least create a ticket , or do some test to help me diagnosis the underlying reason, but Cox refused to do so. As a loyal customer for about 10 years, needless to say, I am extremely disappointed.
Today, after some research, I found a way to get around this problem in my home wifi: changing the DNS to google public 8.8.8.8. Once I changed it on my PC and iPhone, I can open the webpage! Unfortunately, other Cox subscribers still cannot open it, which is a big problem for my business.
Why this problem is not happening with other ISP? Is Cox hiding something? How to resolve this issue permanently?
The error message is "This site can’t be reached. www.byclue.com’s server IP address could not be found." I have a residential account.