Without knowing more its hard to say... personally I would blame this issue on user error or possibly a DNS problem by the limited information available. Have you been able to duplicate the problem yourself? Run pings, traceroutes, check name resolution, etc... Start with the troubleshooting basics and see where that leads you. -- Kevin > Hi group > > I have recently upgraded the IOS on my C3660 router to a IOS 12.2.3 > ENTERPRISE/FW/IDS PLUS IPSEC 56. The previous version was 12.0.7 XK. > > No configurations have been changed. The router has 4 NM-16AM modules > which currently acts as an Access Server. > > The problem is none of my clients can login using their MSN Messenger > or Yahoo Messenger, they can't chech their E-mails with programs like > Outlook either. > > I have checked the configs, there are no access lists applied to the > Async interfaces. I still can login to my Messengers in the LAN. > > I have returned the previous IOS and everything worked fine ! ! ! > > Any idea what the problem is? > > Thanx in advance > > Hamid > Nondisclosure violations to [EMAIL PROTECTED] -------------------- understand, v.: To reach a point, in your investigation of some subject, at which you cease to examine what is really present, and operate on the basis of your own internal model instead. ----------------------------------------- This email was sent using SquirrelMail. "Webmail for nuts!" http://squirrelmail.org/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16149&t=16144 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]