I have had this problem on my laptop for months. If I connect from any other computers (local or remote) I have no problems with the same user.
Using Putty on Windows 10, I can connect to the server, put in username. As soon as I hit enter I see the prompt for the password but I also get a message:
"Network error. Software caused connection abort"
When I click ok the window goes inactive.
This happens on Putty. It also happens when trying to connect WinSCP on the same PC. If I try on my desktop there is no issue. This happens every single time I try to connect.
WHAT I TRIED:
- New IP address
- Reinstall Putty and WinSCP
- Reset Router
Checked server logs ("groot sshd: Connection reset by 192.168.1.1 port 54916"
That is the only line that comes up in the log when I try to connect.
I recently put in a Wifi access point in another location than our main one. I decided to try this and it worked. It must be something to do with the wifi router. I think it also happens when sending keys because I tried connecting to a different server and as soon as I clicked yes on confirming a new key the window went inactive with the same error.
EDIT 2: Event log drop
2017-07-05 15:53:58 Connecting to 192.168.1.191 port 22
2017-07-05 15:53:58 We claim version: SSH-2.0-PuTTY_Release_0.69
2017-07-05 15:53:58 Server version: SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.2
2017-07-05 15:53:58 Using SSH protocol version 2
2017-07-05 15:53:58 Doing ECDH key exchange with curve Curve25519 and hash SHA-256
2017-07-05 15:53:58 Server also has ssh-ed25519/ecdsa-sha2-nistp256 host keys, but we don't know any of them
2017-07-05 15:53:58 Host key fingerprint is:
2017-07-05 15:53:58 ssh-rsa 2048 b4:e3:25:2f:b5:01:1a:96:28:6d:c1:2c:e4:fd:7d:de
2017-07-05 15:53:58 Initialised AES-256 SDCTR client->server encryption
2017-07-05 15:53:58 Initialised HMAC-SHA-256 client->server MAC algorithm
2017-07-05 15:53:58 Initialised AES-256 SDCTR server->client encryption
2017-07-05 15:53:58 Initialised HMAC-SHA-256 server->client MAC algorithm
2017-07-05 15:54:13 Network error: Software caused connection abort