Bloqued URL and SQL Server from outside

Hello Oliver,
Thank you for contacting AVG support community.
I apologize for the trouble caused.
Could you please confirm on how long you are facing this issue?
Please disable AVG Internet Security using the below article and check if everything works fine.
| AVG (https://support.avg.com/SupportArticleView?l=en&urlname=Disable-AVG-Antivirus)
We will certainly help you out.
Thank you and keep us updated.

I was able to access this site once: https://my.discountasp.net/login.aspx but then stop working, add the url as permited in AVG Antitrack but still couldn´t access the site only from another computer without AVG.
Also i am trying to connect to an external database in that same address and couldn´t connect throw me this error:
TITLE: Connect to Server
------------------------------
Cannot connect to xxxxx.discountasp.net.
------------------------------
ADDITIONAL INFORMATION:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 53)

Hello Oliver,
Thank you for contacting AVG support community.
I apologize for the trouble caused.
Could you please confirm on how long you are facing this issue?
Please disable AVG Internet Security using the below article and check if everything works fine.
| AVG (https://support.avg.com/SupportArticleView?l=en&urlname=Disable-AVG-Antivirus)
We will certainly help you out.
Thank you and keep us updated.

Hello Samuel, i have the same issue with other pages but when i add it to avg antitrack list exceptions works fine, now is not working at all.
I can´t access ti url you sent me:
User-added image

Hello Oliver, 

We're sorry for the inconvenience caused.
To fix this issue, we request you to get connected with our additional support.
An email instruction has been sent which will help you to get connected.
If the email is not found in inbox do check on spam and junk folders.