hello,

1. opc.tcp://14.1.2.164:49323 is not accessible outside network.

2. problem solved after upgrade to OPCLabs version 5.32.

thank you,
Adi Damty

i am trying to connect from opc client to opc server Kepware.
when i inside my network i succeed connect to the server, but when i am trying to connect from outside my network to computer inside my network i didn't succeed - see the errors below.
if i am using your opc sample client i succeed to connect from outside to the computer inside the network.
what i am doing wrong ?

- Licensing for EasyUAClient component started, license serial number 1953000002, issuer name "OPC Labs", subject name "Contel Group". - License validity check for EasyUAClient component has been successful. - The OPC-UA engine executing from assembly "OpcLabs.EasyOpcUAInternal, Version=5.30.1114.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", manifest location "C:\Windows\Microsoft.Net\assembly\GAC_MSIL\OpcLabs.EasyOpcUAInternal\v4.0_5.30.1114.1__6faddca41dacb409\OpcLabs.EasyOpcUAInternal.dll", loaded from the global assembly cache: True. - Running under common language runtime version '4.0.30319.18408', pointer size in this process is 4 bytes. - Running under operating system "Microsoft Windows NT 6.2.9200.0". - Logged on user name "Administrator", associated network domain "WIN-ME800LKSJ27", running in user interactive mode: True. - The OPC-UA engine is connecting to the underlying subsystems. - The OPC-UA engine has determined the client certificate parameters as listed below.
SubjectName: CN=CI_OPC_Tester, DC=WIN-ME800LKSJ27
ApplicationName: CI_OPC_Tester
ApplicationUri: urn:WIN-ME800LKSJ27:CI_OPC_Tester:1.0.0.0:neutral:null
ProductUri: urn:literal:string:CI_OPC_Tester
- The OPC-UA engine has successfully connected to the underlying subsystems. - The OPC-UA client session is connecting to endpoint URL "opc.tcp://213.8.54.50:49323". - OPC-UA endpoint selection on discovery URL "opc.tcp://213.8.54.50:49323" candidate report (10 entries) follows.
[0:Winner(1000+0), 1:EligibleNotAccepted(80), 2:EligibleNotAccepted(130), 3:EligibleNotAccepted(90), 4:EligibleNotAccepted(140), 5:EligibleNotAccepted(1000+0), 6:EligibleNotAccepted(80), 7:EligibleNotAccepted(130), 8:EligibleNotAccepted(90), 9:EligibleNotAccepted(140)]. - The OPC-UA server endpoint URL "opc.tcp://14.1.2.164:49323" with security policy URI "opcfoundation.org/UA/SecurityPolicy#None" and transport policy URI "opcfoundation.org/UA-Profile/Transport/uatcp-uasc-uabinary", selected using discovery on endpoint URL "opc.tcp://213.8.54.50:49323", has zero security level. Using this endpoint is not recommended and is only supported for backward compatibility. This happens when no other endpoints are available and eligible for selection. - An OPC-UA endpoint has been selected for discovery URL "opc.tcp://213.8.54.50:49323" with following parameters:
Endpoint URL "opc.tcp://14.1.2.164:49323", message security mode 'None', security policy URI "opcfoundation.org/UA/SecurityPolicy#None", transport profile URI "opcfoundation.org/UA-Profile/Transport/uatcp-uasc-uabinary". - The server certificate failed validation with error code 0x801A0000 while establishing OPC-UA client session to endpoint URL "opc.tcp://213.8.54.50:49323".
BadCertificateUntrusted 'Certificate is not trusted.
SubjectName: CN=KEPServerEX/UA Server, O=Microsoft, C=IL, DC=yoraml-win7.contel.co.il
IssuerName: CN=KEPServerEX/UA Server, O=Microsoft, C=IL, DC=yoraml-win7.contel.co.il' - The server certificate has been accepted for the OPC-UA client session to endpoint URL "opc.tcp://213.8.54.50:49323" by a fallback method.
Certificate information: [Subject]
CN=KEPServerEX/UA Server, O=Microsoft, C=IL, DC=yoraml-win7.contel.co.il

[Issuer]
CN=KEPServerEX/UA Server, O=Microsoft, C=IL, DC=yoraml-win7.contel.co.il

[Serial Number]
8199A4CB

[Not Before]
11/19/2013 1:05:14 PM

[Not After]
11/17/2023 1:05:14 PM

[Thumbprint]
FC2DBE289D47557A02E67AA3155C984F724A117E
- The OPC-UA client session failed to connect to endpoint URL "opc.tcp://213.8.54.50:49323".
OPC-UA service result - BadConnectionClosed.
---- SERVICE RESULT ----
StatusCode: {BadConnectionClosed} = 0x80AE0000 (2158886912)
- The OPC-UA client session on endpoint URL "opc.tcp://213.8.54.50:49323" failed at tick -104514613 and will retry in 10000 milliseconds. - The status subscription for an OPC-UA session on endpoint URL "opc.tcp://213.8.54.50:49323" is in failure. Further such warnings on this session will not be logged.
OPC-UA service result - BadConnectionClosed.
---- SERVICE RESULT ----
StatusCode: {BadConnectionClosed} = 0x80AE0000 (2158886912)