Telnet issues

I couldnt find a better place to put this but I am pretty sure it is related to the network or my PC somehow.

I am telneting into a Cisco 3750 switch and the timeout on the switch is set to 5 minutes.

It will randomly come up with the below message after a sporadic amount of time. It could be a minute it could be two.

It will also happen when I am in the middle of typing commands. It just started happening on my laptop and havent see it before. I dont know if it is happening to anyone else.

Code:

---

*
*
* Line timeout expired
*
*

Connection to host lost.

---

Specs:
Dell Laptop
Windows XP Pro
Hard wired into network
Tried from different VLANs
timing is sporadic < 5min
switch timeout is set to 5 minutes
Tried by doing Start>Run>cmd> telnet switchname
Tried with Putty
Same result on both

let me know what else you need to know.

couple of things could be wrong, bad cable, bad nic, bad switch port.. Are the speed/duplex settings correct? Try not to use auto/auto on both ends. Fixate the speed/duplex on the nic and the switchport..

Just some random things i would try :D

I think the first question would be if it happens from other systems on the network as well

Are you using exec-timeout or session-timeout? For troubleshooting purposes I would set your exec-timeout to 0 and see if you still get disconnected.


Example.



line vty 0 4
exec-timeout 0

Sorry for taking so long to get back... One of our other Net Admins does have the same issue. I have tried a different port, a different switch and tried both auto and 100/full.

I first wanted to believe it was an application issue until it did it with both putty and the telnet command.

Net2
My settings are as follows:

line vty 5 15
exec-timeout 5 0

Doesnt that mean it will timeout after 5 minutes?

I also am looking to see what others use for connecting to their switches.... Please dont ask me why we cant setup SSH on these switches.

[cynicism] apparently its a good idea to just throw every thing on the network in clear text.[/cynicism]

as stated i have tried just telnet and putty. looking for somethign a bit more robust

SecureCRT by Vandyke has always been a favorite of mine, but then again, it's not free though

http://www.vandyke.com/products/securecrt/index.html

What are your line settings for vty 0 4? Posting your whole configuration minus the actually ip addresses would be a great help.