Yet another firewall issue

Pod koniec wywołania WebService'u ginie segment TCP; warstwa transportowa ciągle próbuje dokończyć transmisję, co widać jako wiszenie WebService'u. Co ciekawe, w takim przypadku w kliencie .NET ustawienie timeout-u nic nie daje i aplikacja kliencka będzie cała wisieć.

W trybie debugowania pojawia się ContextSwitchDeadlockException: The CLR has been unable to transition from COM context 0x21def80 to COM context 0x21df1d0 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.
netsh int tcp set global autotuninglevel=disabled
DefaultTTL=128, SackOpts=0