I have a Windows Server 2022 running iis with 1 classic ASP.Net and one .Net Core / Blazor application.
Using the Microsoft application "AppNetworkCounter", I noticed that there is constant inbound and outbound traffic from w3wp.exe (the iis host process). What bothers me is that there is a constant minimum traffic of 40kb/s up and 60kb/s down. This traffic does not change even when I turn off both applications running in iis. When I open a page in one of the iis sites, the traffic shortly spikes and then returns to the constant up/download from before.
So I am looking for a way to find out what is causing this traffic and what the destination/source is (AppNetworkCounter doesn't show this).
I have tried "Microsoft Network Monitor", but to no success due to the complexity of the software and the many sessions being open through the applications running.
Is there an easy/easier way to find out what's going on?
I was able to solve the issue using the application "Microsoft Message Analyzer". It's possible to filter by IIS traffic. This helped me track down the culprit and clear it (a known application running on the server).