Unable to reach website from ATT cellular network but we can reach website from wifi/Ethernet

LindaD340
Participant

Hello,

We have a website that is unreachable when using ATT mobile data. The error we normally get is "unable to establish secure connection with the server". The strange thing is that when we use wifi/ethernet then we are able to connect to the website. We did trace route from the mobile device on cellular data and the trace stops at this IP 107.72.137.100 which is an ATT mobile router of sort according to whois. Also, we just learned that constant contact uses cloudflare to host our site, and there are posts from people experiencing similar issues as we have. So one clourdflare post in particular caught our attention in which they figured out a solution to their problem. Below is the post message:

 

Hi, thanks for replying. I went through Cloudflare support and AT&T and think we have it figured out. The error message was about failing SSL handshake.

The issue appears to be related to IPv6 and the transparent proxies used by AT&T for their cell users. I disabled IPv6 on my domain with Cloudflare and that seems to have cured the issue for now, obviously there will be many other Cloudflare sites affected by this. AT&T are looking into it.

----- End of Post ----

 

Therefore, we'd like to know if in constant contact one can actually disable IPv6 for the domain. I couldn't find that ability. Does anybody know how to do this? We really need to address this issues since many people aren't able to access our website from their mobile devices unless they are on wifi!

 

Any help is much appreciated!

1 REPLY 1
William_A
Moderator

Hello @LindaD340 ,

 

For anything related to Website Builder integrated sites, we'd recommend reaching out to that integration's support team for assistance. 


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
William A
Community & Social Media Support
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Did I answer your question? If so, please mark my post as an "Accepted Solution" by clicking the Accept as Solution button in the bottom right hand corner of this post.

Anyone can be a marketer! Visit our Blog & Resources page to brush up on the latest tips and tricks.
  • Support Tips

    Reporting Metrics

    "Authenticating your emails is the best way to ensure your emails achieve maximum deliverability. If you have your own domain, setting up self-authentication is especially important! " - Will

    See Article
    Avatar
  • Support Tips

    Call-To-Action Links

    "Target your most engaged contacts by creating a segment. Create a special offer or show your appreciation!" - Caitlin

    See Article
    Avatar
  • Support Tips

    Read Before You Send a Test Email

    "Did you know? You can send unlimited test emails to your verified email address, but only 50 in a 24-hour period to non-verified email addresses." - Nick

    See Article
    Avatar