If you want to do a http(s) call per httpclient to an external destination in a Asp.NET Application on ionos webhosting you have to use a proxy server. Otherwise you’ll get a timeout of connection trial after a while with the following error message:
System.Net.Http.HttpRequestException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
The url of the internal win proxy is http://winproxy.server.lan:3128 to allow http(s) access to external destinations.
Link to ionos entry in help documentation:
Dear Sir/Madam
I have three Webservices (Rest API) with their own databases hosted in to IOos.
There is an interecation communication between services hosted in Ionos which means Service A sends Requests to Service B.
For a period of time this communication workder perfeclty between services.
Since 3-4 days I usually get the error:
!A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.!
Even that I enabled proxy in web.config (see below) still does not work.
My question is that, all my servies are hosted to Ionos and the communication between Services still does not work.
Any Idea??