Timeout when connecting to Solaris host regardless of timeout kwarg in SSH.connect()

Currently attempting to initiate a connection with a Solaris host, which I know I can connect to with SSH normally using OpenSSH on Mac, however attempting to connect with paramiko is timing out with the following:

  File "/Users/USER/PycharmProjects/PROJECT/src/Remote_Executor.py", line 38, in __init__
    self.client.connect(hostname=hostname, port=port, username=username, password=password, timeout=99999)
  File "/usr/local/lib/python3.7/site-packages/paramiko-2.7.1-py3.7.egg/paramiko/client.py", line 406, in connect
    t.start_client(timeout=timeout)
  File "/usr/local/lib/python3.7/site-packages/paramiko-2.7.1-py3.7.egg/paramiko/transport.py", line 660, in start_client
    raise e
  File "/usr/local/lib/python3.7/site-packages/paramiko-2.7.1-py3.7.egg/paramiko/transport.py", line 2055, in run
    ptype, m = self.packetizer.read_message()
  File "/usr/local/lib/python3.7/site-packages/paramiko-2.7.1-py3.7.egg/paramiko/packet.py", line 459, in read_message
    header = self.read_all(self.__block_size_in, check_rekey=True)
  File "/usr/local/lib/python3.7/site-packages/paramiko-2.7.1-py3.7.egg/paramiko/packet.py", line 299, in read_all
    raise EOFError()
EOFError

I am currently initiating the connection in a class like so:

class SSH(_RePyError):
    def __init__(self, username, hostname, password='', sudopass='', sudo=False, port=22, animation=None):
        self.username: str = username
        self.hostname: str = hostname
        self.password: str = password
        self.sudopass: str = sudopass
        self.sudo: bool = sudo
        self.port: int = port
        self.password_auth: bool = False

        self.hostkeys = paramiko.HostKeys()
        self.client = paramiko.SSHClient()
        self.client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        self.client.load_system_host_keys()

        if not self.hostkeys.lookup(hostname):
            if not password:
                animation.error(f'No hostkey detected, input password for {username}@{hostname}')
                password = getpass()
                animation.start('Identifying ...')

        if self.password:
            self.password_auth = True

            self.client.connect(hostname=hostname, port=port, username=username, password=password)
        else:
            self.client.connect(hostname=hostname, port=port, username=username)

If I set timeout = 9999999 in the self.client.connect() I am still receiving that EOFError after ~10 seconds.

Reproduce the Solaris connection using SSHClient.connect(), then trace the reported path through Transport.start_client() and packet.py's read_all(). Compare the Paramiko behavior with the successful OpenSSH connection; done means the EOFError and timeout behavior are explained and verified for the reported case.