Help setting up a remote host

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What is it trying to do when it changes the name of the identity file?debug1: Connection established. debug1: key_load_public: No such file or directory debug1: identity file C:/Users/Alex/.ssh/root@doge_rsa.ppk type -1 debug1: key_load_public: No such file or directory debug1: identity file C:/Users/Alex/.ssh/root@doge_rsa.ppk-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_7.3root@doge_rsa.ppk is the right key and works with plink and its openssh version works with a remote linux system. Why does it say that the file is not found? And what does the postfix -cert mean? As in root@doge_rsa.ppk-cert, which is then foundBy the way, the error that I see on the host side from auth.log is the following:localhost sshd[6564]: Connection closed by 192.168.0.106 port 51942 [preauth]

I think root@doge_rsa.ppk is a putty private key and you are using ssh to try to connect to the remote host and it does not know how to read a ppk key.  What is the Network > SSH Executable preference set to in Wing?  If using plink.exe to connect to the remote host works, then start pageant, right click on the icon that appears in lower right of your screen and add your .ppk key, and then change the SSH Executable preference to use plink and not ssh.  Or, if you want to use ssh you need to convert your .ppk key to an openssh key and load that instead into your ssh-agent with ssh-add.  At least I think that is what the problem is... please let me know if this does not help.

Awesome, that worked! Setting the SSH Executable to plink.exe that is.However, now there is another error, when installing the remote agent:The remote agent could not be installed on host id doge01. Timed out. No output was received.Probing shows this at the end (looks normal):Initialised AES-256 SDCTR client->server encryption Initialised HMAC-SHA-256 client->server MAC algorithm Initialised AES-256 SDCTR server->client encryption Initialised HMAC-SHA-256 server->client MAC algorithm Pageant is running. Requesting keys. Pageant has 1 SSH-2 keys login as:Running Debian 9, latest, on the remote machine.

You may need to specify the Host Name in the remote host config in Wing in username@host_or_ip format so it doesn't ask for a login name for the remote host.  Also be sure to load your private key into Pageant and copy the matching public key into the .ssh/authorized_keys file on the remote host.  There are instructions for doing that here:  https://wingware.com/doc/proj/ssh-setup-details (in the Windows with PuTTY section)

I set the login name at the front of the host IP and that worked!Previously I had it set in the Windows .ssh/config file, but since the connection is now going through Plink, it may not be reading it.That should be it for now, thanks a lot.