DUNS ERROR 650, 651, 652
650 - The Remote Access server is
not responding.
MSN - Modem not responding (Error 650).
All versions of Windows - if connecting to a WindowsNT
server with PPTP. See MS
KB Q162847
Error 650 can also occur if the ISP server modem/equipment is not set up
properly.
If this error persists, try dialing in to the server with Hyperterminal
connected directly to modem. (Also see - Using
Hyperterminal.) Nearly all servers will respond after CONNECT with a login
prompt for your user name, and then password. This will allow you to see any
error response from the server. If the server accepts your username and
password, it should start a PPP session, and you cannot use Hyperterminal to get
any further - you may see 'garbage' characters. If this happens, the username
and password combination should work with DUNs. If you get an error, contact
your service provider and have them try and log in with your account
information.
Prodigy (and some other) ISPs: Some ISPs require Client
for Microsoft Networks installed and selected as your primary network logon.
(Windows: Control Panel->Networking)
AOL on your system? If you have AOL installed on your
system, but are not using AOL, the AOL software may interfere with access to any
other ISP. Uninstall AOL. (Windows: Control Panel-> Add/Remove Programs)
MSN 2.52 - 2.6 - Can occur is DUNS is installed after
MSN 2.52. See MS
KB Q192420
Error 651
- Your modem (or other connecting device) has reported an error.
All versions of Windows - This error can occur if there
is an error in the .inf file used to install the modem in Windows, or if the
modem has been installed with the wrong .inf file. If this is the case,
re-install the modem with the correct .inf file. Also see DataRace RediModem
Error - MS
KB Q122901 Evercom 24E+ Error MS
KB Q122414
You can also test logging in with Hyperterminal (see above).
Hyperterminal as described above operates independently of the modem's .inf
file.
Error 652 -
Unrecognized response from the device.
All versions of Windows - This error can occur if there
is an error in the .inf file used to install the modem in Windows, or if the
modem has been installed with the wrong .inf file. If this is the case,
re-install the modem with the correct .inf file.
You can also test logging in with Hyperterminal (see above).
Hyperterminal as described above operates independently of the modem's .inf
file.
Windows NT 3.5, 3.51 - with certain MegaHertz Modems -
See MS
KB Q136034
Windows for Workgroups 3.11 - with MultiTech MT2834
Modem - See MS
KB Q129426
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