Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations wOOdy-Soft on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

Telnet - NTLM Authentication failed

Status
Not open for further replies.

Tezdread

Technical User
Oct 23, 2000
468
GB
Hi, I'm trying to connect to my server with telnet from a laptop running XP and when I connect I get this message.

NTLM Authentication failed due to insufficeient credentials. Please login with clear text username and password

Server allows NTLM authentication only
Server has closed connection

Connection to host lost.

Press any key to continue...


I then typed set ntlm to turn it on and got this message: Will auth(NTLM Authentication)

I'm trying to connect over my LAN to the telnet server which is already running...

Any ideas on what I need to do to login to the server?

Thanks in advance. Tezdread
"With every solution comes a new problem"
 
I found this information


and found that the telnet server was configured to only accept NTLM Authentication.

After I had set the telent server to accept logons by systems not using NTLM Authentication I tried again from the XP comp, it came up saying that it was connecting to the server but just that. I noticed that the cursor was blinking in the top right corner of the cmd window and I could type over the words already there? I've tried it all ways between these two.

When I try and telnet from the Win2k workstation or server to each other or to the XP comp I get a message saying

Connecting To xxx.xxx.x.xxx...Could not open a connection to host on port 23 : Connect failed

I've tried it without specifying the port but checked on the server and it is configured for port 23.

I'm totally lost with this. I'm sure there are lots of things wrong with my network and apart from stripping everything down and re-installing everything is there anything else I can do?

Is there any software that will detect problems within a network and give possible solutions? Or do I need to pay someone who knows what they're doing :) Tezdread
"With every solution comes a new problem"
 
after all that...I've now managed to connect to the server from the Xp comp!! :) both are now set with NTLM Authentication off.

I am still totally unable to connect from the Win2k workstation and server to each other or the XP comp? maybe the client is currupt?

although it says it is connecting it happens so fast I don't think it accesses the network at all which leads me to believe that there's something blocking traffic? I don't have any firewalls installed on these systems though?

I'll keep working on it... Tezdread
"With every solution comes a new problem"
 
I thought I had fully removed ZoneAlarm Pro from my system. I was wrong.

I had removed most of the program but it had left vsmon.exe and a few small files in windows\system32\Zonelabs. When I went into Add/Remove Programs ZoneAlarm wasn't in there and no other programs associated to it so as you can see it looked like the firewall was removed.

I removed the Zonelabs folder and contents and fully removed all instances of vsmon & all zonealarm related registry entries.

After I rebooted, everything was fine.

If anyone has the above problem check your running processes for vsmon.exe. I was having problems with another WinXP Pro machine and vsmon was the cause of those problems to so it's worth checking.
Tezdread
"With every solution comes a new problem"
 
are you using the same user name/password/domain, to authenticate from the laptop to the server with NTLM? A+, MCP, CCNA
marbinpr@hotmail.com

"I just know that I know nothing"
Socrates (469-399 B.C.E.)

 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top