LDAPSocketOpenError('socket connection error while opening: [Errno 110] Connection timed out'

[anshupitlia]

I am starting a connection like this:

    try: 
         server = Server(config['LDAP_URL'] + ':' + config['LDAP_PORT'], get_info=ALL)
         conn = Connection(server, config['LDAP_BIND_DN'], config['LDAP_BIND_SECRET'])
         conn.bind()
    except LDAPSocketOpenError as e:
        print("error in bind", conn.result)

It is giving this error:
LDAPSocketOpenError('socket connection error while opening: [Errno 110] Connection timed out'

Here is the stacktrace:

  error in bind inside exception None
  File "ldap_connection.py", line 11, in create_ldap_connection
   conn.bind()
  File ".local/lib/python3.6/site-packages/ldap3/core/connection.py", line 524, in bind
    self.open(read_server_info=False)
  File ".local/lib/python3.6/site-packages/ldap3/strategy/sync.py", line 56, in open
    BaseStrategy.open(self, reset_usage, read_server_info)
  File ".local/lib/python3.6/site-packages/ldap3/strategy/base.py", line 147, in open
    raise LDAPSocketOpenError('unable to open socket', exception_history)
ldap3.core.exceptions.LDAPSocketOpenError: ('unable to open socket', [(LDAPSocketOpenError('socket connection error while opening: [Errno 110] Connection timed out',), ('10.0.29.78', 636))])

1. why does the bind fail? The server is up and running fine.
2. conn.result returns None, not much helpful. What does it mean?

[cannatag]

"Connection Timed out" means that there was no response from the server. The result is None because no LDAP session was established. Are you sure you can reach the server?

[anshupitlia]

@cannatag Yeah, I was able to reach the server, and then suddenly this error would come up. I'm now wondering if it was because of some pool of connections or something, I got around this error by rebooting the server machine and the service machine. I'll reopen if I get this error again.

[pro4tlzz]

@cannatag how can you a server connection?

[KDR9666]

@cannatag Yeah, I was able to reach the server, and then suddenly this error would come up. I'm now wondering if it was because of some pool of connections or something, I got around this error by rebooting the server machine and the service machine. I'll reopen if I get this error again.

Kindly support i too having same issue,

ldap3.core.exceptions.LDAPSocketOpenError: socket connection error while opening: [Errno 110] Connection timed out