Win95 logon is very slow after changing network settings.

Specific question:  
After changing a setting in network properties bootup was extremely slow (2-3 minutes hang between loading video, CD-ROM, etc. drivers and displaying the network logon dialog).  I undid the changes; but the problem persisted. Why couldn't I just undo the changes and get my old boot sequence back?

Details:
Yesterday a network administrator visited my workstation to "correct" a network setting.  In the Client for Microsoft networks dialog box he checked the "logon to Windows NT domain" checkbox in the logon validation frame and entered the server's domain name.  Also changed the primary network logon from Netware to Microsoft's client logon.

  Then we rebooted...  (heh, heh)

The boot went through its normally slow process; changing video modes, loading CD-ROM drivers, etc., then seemed to hang after loading my Wacom tablet driver, but before showing the network logon dialogs.  We tried it a couple of times, and then booted into safe mode, unchecked the box and, reset the primary logon.  But the problem didn't go away!!  It still seemed to hang right before showing the network logon dialog.  We couldn't undo the settings.  

I say "seemed to hang" because one time we stepped away from the computer for about 5 minutes, came back and found the network logon dialog had appeared.  Turns out that after 2 to 3 minutes of apparent inactivity  (No HD activity) the network dialog appeared.  
 
We tried making the same changes to another windows 95 machine on the same subnet and got the same thing to happen.  Both computers have 3Com etherlink 10/100 cards and are Pentium 166's with 32 MB ram.  Both have run correctly on the network for at least the last 6 months.

For some reason the problem cleared itself up.  We had unsuccessfully tried hard booting both machines to no avail; but at some point both machines righted themselves.  It looked like we had to shut the computer off for a minute to let capacitors, or something, decay.

I think we should have been able to uncheck that NT domain checkbox and to get back my original settings.  Why didn't that work?  
ewagnerAsked:
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mdcCommented:
Is it possible that Netbios over IPX was checked by accident. I had the same slow responses when doing this. Resetting this gave me back the normal connect times.
!!!???
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ewagnerAuthor Commented:
I'm 100% sure it wasn't.  
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