Greetings and... an admittedly very broad questions, maybe not even related to Fedora except for "what are the best tools on Fedora to diagnose this?" I have this fedora desktop on which I usually keep open shells connected to several servers, via ssh (on different ports too). Until 3/4 days ago, I could leave all of them "hanging" for DAYS, without typing anything at those prompts, and they'd remain alive and ready to accept commands. Now, all of them freeze if I leave them idle for more than a few minutes. Every other connection (email, web, etc...) has no problem. I have also noticed that if I rsync via ssh several GBs of stuff in the same moments, from/to the same servers, with the same accounts, same ports... etc, THOSE operations work just fine, pretty quick too. In other words, it's all and only the plain AND unattended ssh connections that systematically freeze. I ran yum update, and that did not change anything. At this point, it is likely that either my ADSL provider and/or its modem are doing something funny, so the question is: how could I discover what happened, and where? Thanks, Marco -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org