Dell m6220 - Did not receive VTY entry prompt from device after CR

Can not get CatTools to backup the configs on my Dell m6220 switches.

Have read several existing posts but their resolves did not work.

     * have changed from Dell Switch CLI to Cisco.Switch.IOS - same results

     * have cleared prompts from the Prompts tab, also tried adding "User"

     * have cleared the boxes from the passwords tab, and currently have Initial login requires username / password field checked.

The switch is setup to accept telnet, and is setup for TACACs authentication.

I do not know how to post the detailed logs - if someone can help me find/ create those - that would be great.

Thanks for your help!