Unable to exploit SMB with Auto SMB tool

imeoutError: timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “/home/sahithi_musti/AutoBlue-MS17-010/eternalblue_exploit8.py”, line 568, in
exploit(TARGET, sc, numGroomConn)
File “/home/sahithi_musti/AutoBlue-MS17-010/eternalblue_exploit8.py”, line 470, in exploit
progress = send_big_trans2(conn, tid, 0, feaList, b’\x00’*30, len(feaList)%4096, False)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/home/sahithi_musti/AutoBlue-MS17-010/eternalblue_exploit8.py”, line 408, in send_big_trans2
recvPkt = conn.recvSMB() # must be success
^^^^^^^^^^^^^^
File “/usr/lib/python3/dist-packages/impacket/smb.py”, line 2592, in recvSMB
r = self._sess.recv_packet(self.__timeout)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/usr/lib/python3/dist-packages/impacket/nmb.py”, line 915, in recv_packet
data = self.__read(timeout)
^^^^^^^^^^^^^^^^^^^^
File “/usr/lib/python3/dist-packages/impacket/nmb.py”, line 1002, in __read
data = self.read_function(4, timeout)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/usr/lib/python3/dist-packages/impacket/nmb.py”, line 986, in non_polling_read
raise NetBIOSTimeout
impacket.nmb.NetBIOSTimeout: The NETBIOS connection with the remote host timed out.

help me as i am unable to generate a meterpreter session.