I have just installed Atom on my UP^2 unfortunately when I try to install any new packages I get the following error:
write EPROTO 101057795:error:140943F2:SSL routines:ssl3_read_bytes:sslv3 alert unexpected message:openssl\ssl\s3_pkt.c:1493:SSL alert number 10
101057795:error:1409E0E5:SSL routines:ssl3_write_bytes:ssl handshake failure:openssl\ssl\s3_pkt.c:659:
No packages are shown not even the ones that should have been installed by default.
I have had no problems with the installation on my laptop where I installed the Platformio IDE which I use everyday.