this is the trace log
2019-04-15 14:54:02.963 : ntzgsvp:no SSL version specified - using default version 0
2019-04-15 14:54:02.963 : ntzgcpp:no SSL cipher suites specified
2019-04-15 14:54:02.963 : ntzgcap:retrieved value "FALSE" for client authentication parameter
2019-04-15 14:54:02.963 : ntzGetStringParameter:found value for "wallet_location" configuration parameter: "SOURCE = (METHOD = FILE) (METHOD_DATA = (DIRECTORY = C:\app\sd))"
2019-04-15 14:54:02.963 : ntzAllocate:allocating 67 bytes of memory.
2019-04-15 14:54:02.963 : ntzAllocate:allocating 18 bytes of memory.
2019-04-15 14:54:02.963 : ntzGetWRLFromDatabaseCallback:SERVICE_NAME available and WRL type is NZTTWRL_FILE, checking to see if per-PDB wallet for TLS is available.
2019-04-15 14:54:02.963 : nzosReadCertParams:sslconf.ora location is..
2019-04-15 14:54:02.963 : nzosReadCertParams:C:\app\myuser\product\18.0.0\dbhomeXE\ldap\admin\sslconf.ora
2019-04-15 14:54:02.963 : nzosReadConfFile:sslconf.ora file could not be opened. Continuing.
2019-04-15 14:54:02.963 : nzupgew_get_environ_wrl:Environment Variable not found or empty value.
2019-04-15 14:54:02.963 : nzupawp_apply_wrl_policy:Using wallet locator from caller argument ..
2019-04-15 14:54:02.964 : nzupgew_get_environ_wrl:Environment Variable not found or empty value.
2019-04-15 14:54:02.964 : nzupawp_apply_wrl_policy:Using wallet locator from caller argument ..
2019-04-15 14:54:02.964 : nzupgew_get_environ_wrl:Environment Variable not found or empty value.
2019-04-15 14:54:02.964 : nzupawp_apply_wrl_policy:Using wallet locator from caller argument ..
2019-04-15 14:54:02.964 : nzupgew_get_environ_wrl:Environment Variable not found or empty value.
2019-04-15 14:54:02.964 : nzupawp_apply_wrl_policy:Using wallet locator from caller argument ..
2019-04-15 14:54:02.964 : snzdfo_open_file:Opening file C:\app\sd\ewallet.p12 with READ ONLY permissions
2019-04-15 14:54:02.964 : snzdfo_open_file:Opening file C:\app\sd\cwallet.sso with READ ONLY permissions
2019-04-15 14:54:02.964 : snzdfo_open_file:File Open/Close error
2019-04-15 14:54:02.964 : nzdfo_open:File Open/Close error
2019-04-15 14:54:02.965 : nziropen:rio open failed with error 28759
2019-04-15 14:54:02.965 : nzdtrsr_store_certreq:nziropen() returned error 28759
2019-04-15 14:54:02.965 : nzswFRFileRetrieve:Call to unlock file (UnlockFileEx) failed.
2019-04-15 14:54:02.965 : nztwOpenWallet:Could not open wallet from file:C:\app\sd: NZ error 28759
2019-04-15 14:54:02.965 : ntzlogin:Wallet open failed with error 28759
2019-04-15 14:54:02.965 : ntzlogin:returning NZ error 28759 in result structure
2019-04-15 14:54:02.965 : ntzlogin:failed with error 540
2019-04-15 14:54:02.965 : ntzConfigure:failed with error 540
2019-04-15 14:54:02.965 : ntzCreateConnection:failed with error 540
2019-04-15 14:54:02.993 : ntzconnect:failed with error 540
2019-04-15 14:54:02.993 : nserror:nsres: id=3, op=65, ns=12560, ns2=0; nt[0]=540, nt[1]=0, nt[2]=0; ora[0]=0, ora[1]=0, ora[2]=0
2019-04-15 14:54:02.993 : nsopen:unable to open transport
2019-04-15 14:54:02.993 : nstoClearTimeout:ATO disabled for ctx=0x0000000001F27C80
2019-04-15 14:54:02.993 : nstoClearTimeout:STO disabled for ctx=0x0000000001F27C80
2019-04-15 14:54:02.993 : nstoClearTimeout:RTO disabled for ctx=0x0000000001F27C80
2019-04-15 14:54:02.993 : nstoClearTimeout:PITO disabled for ctx=0x0000000001F27C80
2019-04-15 14:54:02.993 : nstoUpdateActive:Active timeout is -1 (see nstotyp)
2019-04-15 14:54:02.993 : nsglhc:nsanswer error 12560
2019-04-15 14:54:02.993 : nsglhc:Deallocating cxd 0x1f284c0.
listener:
# listener.ora Network Configuration File: C:\app\myuser\product\18.0.0\dbhomeXE\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = xe)
(ORACLE_HOME = C:\app\myuser\product\18.0.0\dbhomeXE)
(SID_NAME = xe)
)
)
SSL_CLIENT_AUTHENTICATION = FALSE
WALLET_LOCATION =
(SOURCE =
(METHOD = FILE)
(METHOD_DATA =
(DIRECTORY = C:\app\sd)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.177.79.234)(PORT = 1521))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCPS)(HOST = 10.177.79.234)(PORT = 2484))
)
)
ADR_BASE_LISTENER = C:\app\myuser\product\18.0.0\dbhomeXE\log
SAVE_CONFIG_ON_STOP_LISTENER = TRUE
TRACE_LEVEL_LISTENER = USER