Dial-Up Networking could
not negotiate a compatible set of network protocols you specified in the Server
Type settings. Check your network configuration in the Control Panel then
try connecting again.
By: Bradford W. Liedel
The ever illusive, nasty, nasty error message. This error has caused
several ISPs to lose customers and perhaps some people to give up on the
internet all together. It can be an easy fix, it can be a HARD fix.
The following fixes are not necessarily put in the order they should be done,
however I have tried to put them in the best order possible. You may want
to "undo" some steps before continuing with others, though some steps
may help others. It is really a BIG trial and error. Don't expect a
call on this error message to be a short one. It can be, however I have
actually worked on this error twice with the end resulting in the customer
reinstalling windows (which pretty much always works). If you are
interested, here is Microsoft's take on how to fix this: Click
1. First thing to do is
check all of the user's settings. Make sure the dialer's settings are
correct (maybe even delete and recreate the dialer right away), make sure that the network
settings look good, and make sure that there are not extra winsock.dll's (only 1
in C:\windows) or wsock32.dll's (only 1 in C:\windows\system). Reboot.
2. Rip and Reinstall
Dial-Up Networking, the dialer, all of the .pwl files, and the network control
panel. Make sure that this is a FULL, and very THOROUGH Uninstall and Reinstall.
3. Now that we have the
regular stuff out of the way and obviously it did not work (since you are
reading on), lets get to the more complicated stuff. First start by
opening the Modems control panel, going to the properties of the modem, and it's
port settings. Lower the Transmit Buffer. Just a little? Alot?
Welcome to variation.
4. Didn't work? Ok,
next try. Still in the modem properties, click on the options tab and have
it bring up a terminal window after dialing. When the terminal window
comes up, just click continue.
5. Still no go? Lets
leave the modem control panel then. Go back to the dialer properties and
uncheck "Enable Software Compression".
6. Still not working?
Same general area, open up the TCP/IP properties and uncheck "Use IP Header
7. Ok. Lets try
this. Close everything and press CTRL-ALT-DEL. RNAAPP loaded
up? If so, beautiful, perhaps (and I mean PERHAPS) we have found the
problem. Fix RNAAPP.
8. Bummer huh? I'll
let you in on a little secret. On a few calls after uninstalling and
reinstalling DUN, NCP,
all the .pwl files, and the dialer 3-5 times it started working.
Lovely. Now that the pleasantries are out of the way we will move on to
this: Lower the port speed of the modem. Lower the receive buffer a
setting or two. Is it an older version of windows? Upgrade dialup
networking, and if you are going to upgrade dialup networking (assuming you have
to send the files to them via mail or other means), you might as well upgrade
their latest modem drivers/firmware as well. [Upgrading DUN *includes*
getting the ISDN service pack if that is all they do not have.]
9. Is it a USRobotics/3COM
Sportster? Try the init string: s12=10
10. I don't know if I
should really suggest this, but see what happens when you turn off power
management in the control panel. It's worked before. Ick.
11. Try unchecking DHCP
under TCP/IP in the NCP. Usually this is already done during step one, but
make sure it is by this point.
12. Change the computer
name and workgroup names under the Identification tab in the network control
panel. Make them so they will NOT conflict with anyone else on your
12. Ready for another Uninstall and Reinstall? Well time to do one! Time for the ickiest of them all...the
Microsoft full Uninstall and Reinstall of DUN. Deleting files and extracting from cab
files. Gotta love this one! This
is the link to the Microsoft DUN Uninstall and Reinstall.
13. Windows 95? Get
32 update and install it.
14. Hit the modem.
Hit it hard. Barrage it with drivers, inits, and have phone line tests
15. Scared of regedit?
Then skip this step:
HKEY LOCAL MACHINE > SYSTEM > CURRENTCONTROLSET > SERVICES > CLASS
> NETTRANS. From here highlight each 000#. Look for DriverDesc,
across from it look for what it is equal to. Look for the one that has
TCP/IP across from DriverDesc. There should be only one with TCP/IP, if
there is more than one, choose the one that has the IP address of 0.0.0.0.
From here click on EDIT, then NEW STRING VALUE. Call it MaxMTU and set the
VALUE DATA to 768. Exit and reboot. REMEMBER,
THIS FIX IS AT YOUR OWN RISK!!!!!
worse come to worse? Check out step 10 of the Microsoft
Fix. Basically...reinstall windows without compromising all of your
software. Truthfully? At this point I would compromise it.
Nuke it all. Full reinstall of windows. If you find any new fixes
for this error. SEND IT TO ME!
This page was last modified on Saturday, 05-Feb-2011 15:10:48 EST.