Thought I would make a new post since the thread is so far down.
This regards the problem with N2H2 causing abends and winsock errors.

We just downloaded and installed the patch bm37fp3, tested, and it
to fix the problem.
Didn't know it dealt with N2H2 until you get way down into the
where it states:

3.2 Access Control
1. NWADMN32 crashes when 'None' is selected for
3rd-party rule type.
2. Large URLs abend proxy when N2H2 is selected.

Hope this helps other N2H2 users - again, there was no
announcement from
N2H2 even though I am on a mailing list for updates to this issue. (At
I thought I was...)