Lost permission to repo that I had access to 5 days ago

[Max Schuessler]

So I created a new repo 5 days ago. I proceeded to clone it, make some changes, and push it as usual. Nothing went wrong. Today, when I made more changes and tried to push, I got the error "Permission denied (publickey)."

I made sure my ssh key matched the one I had on bitbucket. 

I made sure the key was added to my ssh agent. 

I tried disconnecting and reconnecting to origin master.

I tried cloning (same error).

I tried recreating my ssh key (adding it to bitbucket and ssh agent again).

I tried running ssh -T git@bitbucket.org:username. It said: "logged in as username. you can use git or hg to connect to bitbucket. Shell access is disabled."

When I run ssh -V git@bitbucket.org I get: 

OpenSSH_7.5p1, OpenSSL 1.0.2l 25 May 2017
debug1: Reading configuration data /c/Users/mmsch/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Connecting to bitbucket.org [104.192.143.3] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/mmsch/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/mmsch/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/mmsch/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/mmsch/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/mmsch/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/mmsch/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/mmsch/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/mmsch/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.5
debug1: Remote protocol version 2.0, remote software version conker_1.0.311-c6337e4 app-129
debug1: no match: conker_1.0.311-c6337e4 app-129
debug1: Authenticating to bitbucket.org:22 as 'git'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256@libssh.org
debug1: kex: host key algorithm: ssh-rsa
debug1: kex: server->client cipher: aes128-ctr MAC: hmac-sha2-256-etm@openssh.com compression: none
debug1: kex: client->server cipher: aes128-ctr MAC: hmac-sha2-256-etm@openssh.com compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ssh-rsa SHA256:zzXQOXSRBEiUtuE8AikJYKwbHaxvSc0ojez9YXaGp1A
debug1: Host 'bitbucket.org' is known and matches the RSA host key.
debug1: Found key in /c/Users/mmsch/.ssh/known_hosts:1
debug1: rekey after 4294967296 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey after 4294967296 blocks
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /c/Users/mmsch/.ssh/id_rsa
debug1: Trying private key: /c/Users/mmsch/.ssh/id_dsa
debug1: Trying private key: /c/Users/mmsch/.ssh/id_ecdsa
debug1: Trying private key: /c/Users/mmsch/.ssh/id_ed25519
debug1: No more authentication methods to try.
Permission denied (publickey).

It says the publickey can continue. Does this mean my private key is failing?

Side note: I use 2 keys. One for bitbucket and one for github. This is my config:

Host bitbucket.org:username
 HostName bitbucket.org
 PreferredAuthentications publickey
 IdentityFile ~/.ssh/id_rsa_one

Host github.com:username2
 HostName github.com
 PreferredAuthentications publickey
 IdentityFile ~/.ssh/id_rsa_two

Also, when I first pushed today, it said it added my IP address again. Not sure if that's of importance. 

[Marcin Sydor]

Hi, I would like to confirm that I have been had the same issue in past two months. I'm on macOS 10.13.
When I create the keys all works fine first day but the next day I don't have an access to my repos on bitbacket. Unfortunately I have not found solution to this problem. I have to recreate the keys every day. It's really annoying. I would grateful for any advice or help.