Which version of puTTY are you using? If < 0.62, try that version.
If it's 0.62, does the latest development snapshot make any difference? I vaguely remember having similar sorts of issues with older versions of puTTY on Windows 2K8 R2. Cheers, Phil -- Phil Randal Infrastructure Engineer Hoople Ltd | Thorn Office Centre | Hereford HR2 6JT Tel: 01432 260415 | Email: [email protected]<mailto:[email protected]> From: Richard McClary [mailto:[email protected]] Sent: 09 November 2012 16:23 To: NT System Admin Issues Subject: RE: SSH (PuTTY) session from Windows2008R2 Thanks... 1. It connects for a few seconds, displaying "SSH-1.99-Cisco-1.25". I never get a login prompt. Any keystroke (or doing nothing for about 5 seconds) results in "Connection to host lost.) 2. More playing here has shown that it the situation is not consistent. I can connect to my NetApp storage appliances using PuTTY (on the same Win2008 server), right after being denied access to the Cisco switch stack. 3. The switch not allowing access from a Windows2008 server via SSH (but allowing it through Win7 and below) is a stack of Cisco Catalyst 3750 switches. Current firmware is 12.2(55)SE1-IP-BASE-CRYPTO 4. So far, have not found anything useful at the Cisco site about this. 5. A possible clue... using "telnet <address> 22" shows the SSH version of the remote system. The Cisco, as mentioned, shows "SSH-1.99". The NetApp and firewall systems all show "SSH-2.0". From: Kim Longenbaugh [mailto:[email protected]] Sent: Friday, November 09, 2012 10:06 AM To: NT System Admin Issues Subject: RE: SSH (PuTTY) session from Windows2008R2 Will the Windows client let you "telnet <ipaddress> 22" ? From: Richard McClary [mailto:[email protected]] Sent: Friday, November 09, 2012 9:41 AM To: NT System Admin Issues Subject: SSH (PuTTY) session from Windows2008R2 Greetings! We use PuTTY for SSH sessions to manage various devices. An issue has recently been discovered by us here... We have no problem logging in to our Cisco Catalyst 3750 switch stack via SSH from machines running Windows XP, Windows 7, or Windows 2003. However, if we are logged into a Windows 2008R2 system... Using PuTTY, we connect to the switch stack and get a login box. After providing user name and password, we are denied access. Using telnet (MS version enabled in the "Features" page of Control Panel/Applications), we can log in with no problem. My preliminary Google searches seem to indicate that although SSH clients and servers are not a part of Windows 2008, it is supported. So far, nothing regarding this inability to log in to other systems using SSH. Again, this is weird as a telnet session from the same Windows 2008 machine gives access. Anyone??? Thanks!!! -- Richard D. McClary Jr Infrastructure Architect, Information Technology Group ASPCA(r) 1717 S. 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