When you set up Tekla Structures license server in your network, you may also need to configure the firewall and antivirus settings:

• You need to allow the applications tekla.exe and lmgrd.exe to operate through the firewall on the license servers and on the client computers.
• The internal firewall at your company must allow the communication between the license server computer and the computers with Tekla Structures.
• In addition to allowing the exceptions in your actual firewall, you may need to configure exceptions for Windows Firewall. Windows Firewall may be set on without you being aware of it, because some Windows updates may automatically turn on the Windows Firewall.

For instructions on how to modify the firewall settings so that the Windows Firewall on the license server allows Tekla Structures licensing traffic, see:

• Allow exceptions in firewall for lmgrd.exe and tekla.exe: Windows Server 2008

• Allow exceptions in firewall for lmgrd.exe and tekla.exe: Windows 7, 8, 8.1, 10 and Windows Server 2012

• Allow traffic in fixed TCP/IP ports: Windows Server 2008

• Allow traffic in fixed TCP/IP ports: Windows 7, 8, 8.1, 10 and Windows Server 2012

In addition to Windows Firewall, the information given also applies to firewalls from other vendors.