Message "Could not establish a connection"

d Dave

on June 30, 2015

When I start OpenCDISC Community 2.0.1, I'm getting a pink banner across the top of the window with a red message saying "Could not establish a connection". I've seen that mentioned on another thread here, but that was a Citrix-related question. I'm running on Windows 7 and I'm seeing the message on both 32-bit and 64-bit Windows.

Does anyone know what the problem might be? Or any information I could add that might be helpful to figuring it out?

Thanks!

Forums: Troubleshooting and Problems

s Sergiy

on July 14, 2015

Hi Dave, Most likely you did

Hi Dave,

Most likely you did not have an Internet connection or your Firewall blocks an OpenCDISC application.

Kind Regards,

Sergiy

m Manisha

on August 7, 2015

could not establish a connection

HI Sergly,

I do have internet connection and also windows firewall is off. still facing the issue.

FYI... server to be install on wwindows 2008 R2.

Thanks,

Manisha

j James

on January 4, 2018

This is how we fixed this message

We added the following IP addresses to the outbound ACL on our firewall.
52.0.183.101
52.4.109.111

j Justin

on October 17, 2018

could not establish a connection

Hi,

I have the same issue. I'm on windows 10 and I turned off both router and Windows firewall. Does somebody has a solution?

s Sergiy

on November 14, 2018

For P21 Community 2.2.0 you can ignore this warning

Hi,

In P21 Community 2.2.0, internet connection is used only for "Recent Updates" messages like availability of new versions of P21C or CT. It does not have any actual impact to functionality of Validator or Define.xml tools. So, now for P21 Community 2.2.0 and previous versions you can ignore this warning.

Thanks,

Sergiy