During the last weeks I encounter a lot of download problems of all programs that are based on Java (Eclipse, Maven, Android SDK manager, ...). The download starts and runs fine until suddenly it stops completely and never continues. When I download the same problematic files with other programs e.g. using wget the download is running without any problems.
A further analysis with Wireshark shows that when the download stops a "TCP window full" message is sent and afterwards only "TCP ZeroWindow" messages are getting sent.
System: Windows 7 32bit with Oracle JDK 1.7.0_03. Downgrading to 1.6.0_31 does not help...
Native Windows applications doesn't seem to be affected.
Anybody an idea how to proceed?
I tried to fix my problem by changing the TCP reception window enlarging algorithm (command
netsh int tcp set global autotuninglevel=disabled). But it doesn't matter which mode I use - disabled, restricted, normal, ... the problem still persists.
Even after a complete reinstallation this problem persists. Therefore I started to disable/deinstalling programs. At the moment the most promising culprit is AVG Free 2012 or to be precise the "Link Scanner" component.