I setup SSH server on my Windows machine from this link. SSH from Ubuntu to Windows worked fine for a while, but then it started failing with the following error. If I restart the Windows machine, it will work fine for a while and then start failing again. What is going wrong?
user@hostname:~$ ssh user@ip
ssh_exchange_identification: read: Connection reset by peer
user@hostname:~$ ssh -v user@ip
OpenSSH_5.9p1 Debian-5ubuntu1.10, OpenSSL 1.0.1 14 Mar 2012
debug1: Reading configuration data /home/user/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to ip [ip] port 22.
debug1: Connection established.
debug1: identity file /home/user/.ssh/id_rsa type 1
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
debug1: identity file /home/user/.ssh/id_rsa-cert type -1
debug1: identity file /home/user/.ssh/id_dsa type 2
debug1: Checking blacklist file /usr/share/ssh/blacklist.DSA-1024
debug1: Checking blacklist file /etc/ssh/blacklist.DSA-1024
debug1: identity file /home/user/.ssh/id_dsa-cert type -1
debug1: identity file /home/user/.ssh/id_ecdsa type 3
debug1: Checking blacklist file /usr/share/ssh/blacklist.ECDSA-256
debug1: Checking blacklist file /etc/ssh/blacklist.ECDSA-256
debug1: identity file /home/user/.ssh/id_ecdsa-cert type -1
ssh_exchange_identification: read: Connection reset by peer
