Hello everybody,
my problem seems to be solved. I uninstalled virus scanner, firewall and
virtual box (as it has a virtual network adapter). And reinstalled these
step by step until my Tomcat stops responding. I didn't want to beliefe
but have to yield to reason. ;) The firewall was the culprit. Now I have
to run with Windows Firewall for the time being.
Thank you all for your kind support. Best regards,
T. Gau
André Warnier schrieb am 06.08.2010 13:16:
> ...
> Restarting a bit earlier in this conversation :
> The browser connections are shown (by netstat.exe) in the state
> "CLOSE_WAIT".
>
> The following page explains what that means :
> http://support.microsoft.com/kb/137984
>
> If I understand this right, it means that the client has closed its
> side of the connection (by sending a FIN packet). The socket is now
> "half-closed", and the server should close its own side.
> However, the server does not do that, and these sockets stay
> half-closed (or half-opened, if you prefer).
>
> What puzzles me, is the fact that according to the state of the
> connections, the clients should have closed them, but you otherwise
> write that the browser(s) still seem to display the fact that they are
> waiting for something. You also say that the basic html page is
> loaded, but that the images are missing.
> It looks very much as if each browser can send one request (for the
> home page), and receives a response (the home page, html-only). But
> then, when the browser tries (on the same connection normally) to
> request one of the embedded images, it does not receive a response and
> keeps waiting for it. And the server seems to think that the browser
> has disconnected, but never closes its end of the socket.
>
> Obviously, something is seriously wrong somewhere, because this
> situation does not really make sense.
>
> But it does not really look like a Tomcat problem, and more like an
> underlying network issue.
>
> You have also mentioned that you disabled the Windows firewall, but
> had been running some other firewall software at some point (which is
> now also disabled).
>
> At this point, my suspicions would go very much in the direction of
> some interference by one or both of these firewall softwares.
> Maybe when you initially installed the add-on firewall, you did
> something wrong and now your Windows installation is somehow screwed up ?
> It is relatively easy under Windows to get into such a kind of mess,
> and relatively difficult to get out of it once it is there.
> In my experience, different firewall packages and/or VPN packages have
> a tendency to seriously interfere with eachother. You seem to have a
> problem of that category.
>
> Any chance of doing some "Windows repair" job before you continue ?
> At the very least, I would try to completely de-install the additional
> firewall software, and try again then. Just disabling that firewall
> may not be enough to really remove the links and callbacks it may have
> installed all over the place.
>
>
>
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