On Sun, Sep 20, 2020 at 01:59:41PM -0300, Beco wrote: > Thank you all so much for thid new batch of input Mick, LARAC, David, Tomas > and Reco > Bellow I'll try to answer in a brief way all at once: > > > > > On Sun, 20 Sep 2020 at 00:34, mick crane <mick.crane@gmail.com> wrote: > > Is this Putty or something with keys on student's PC ? > > No keys on PUTTY. Log in with password. > > > If worked before maybe something went wrong with the saved connection > > but that doesn't explain why cannot connect via phone>router WIFI unless > > there is separate issue there. > > Exactly. How come phone>wifi don't work, and phone>mobile-net works ? Yes. Given the data you've provided, I retract my first hunch: it seems your student is seeing a different host: - either DNS resolves to a different IP address -- then you'd see different IP addresses for your server as viewed from your student's workstation wrt the "rest of the world - or routing sends your student to a different host (claiming the same IP address, that stinks ;-) Traceroute might help in the second case. Besides, you wouldn't see your student's access attempts in your server logs -- after all, he's knocking at another door. Cheers - t
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