When users are unable to log into a GaeaSynergy 6 network installation, the problem is usually related to one of the following:

• Incorrect server name or IP address
• Network port 3000 blocked by a firewall
• The License Manager service not running
• Client computers unable to communicate with the server
• Incorrect network license settings on the client

This guide explains how to verify the server connection, test the IP address, confirm the network port is open, and troubleshoot common network login problems for GaeaSynergy 6.

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Understanding How GaeaSynergy Network Licensing Works

GaeaSynergy network licensing uses a centralized License Manager service running on the server. Client computers connect to the server over the network using:

• A server name or IP address
• TCP Port 3000

The client communicates with the License Manager service to:

• Authenticate users
• Request concurrent licenses
• Open network projects and databases

The GaeaSynergy documentation specifies that the network port should normally be set to 3000.

If the client cannot reach the server or the port is blocked, users will be unable to log in.

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Step 1 – Verify the License Manager Service is Running

Before troubleshooting the network connection, first confirm the GaeaSynergy License Manager service is running on the server.

How to Check the Service

On the server computer:

1. Open:
   • Control Panel
   • Administrative Tools
   • Services
2. Locate:
   • GaeaSynergy 6 License Manager
3. Verify the status is:
   • Running

If the service is stopped:

1. Right-click the service
2. Select:
   • Start

The service should normally start automatically when Windows starts.

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Step 2 – Verify the Correct Server Name or IP Address

Client computers must point to the correct network server.

Where to Configure the Network Address

On the client computer:

1. Open GaeaSynergy
2. Select:
   • File > Preferences
3. Open:
   • Network License
4. Verify:
   • Networked = Yes
   • Correct server name or IP address
   • Port = 3000

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Step 3 – Find the Correct Server IP Address

If users cannot connect using the server name, try using the server IP address instead.

How to Find the Server IP Address

On the server:

1. Open Command Prompt
2. Type:

ipconfig

3. Press Enter

Look for:

IPv4 Address

Example:

IPv4 Address . . . . . . . . . . : 192.168.1.25

This is the IP address clients should use in the GaeaSynergy Network License settings.

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Step 4 – Test Network Connectivity Using Ping

After obtaining the server IP address, test whether the client can reach the server.

Test the Server Connection

On the client computer:

1. Open Command Prompt
2. Type:

ping 192.168.1.25

(Replace the IP address with your actual server IP.)

If successful, you should receive replies such as:

Reply from 192.168.1.25: bytes=32 time<1ms TTL=128

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What If Ping Fails?

If you receive:

Request timed out

or

Destination host unreachable

then:

• The server may be offline
• The client may be on the wrong network
• Windows Firewall may be blocking traffic
• Network switches or VPN settings may be preventing communication

Before proceeding, confirm:

• Both computers are on the same network
• VPN connections are working correctly
• Firewalls allow communication

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Step 5 – Verify Port 3000 is Open

Even if the client can ping the server, the required license port may still be blocked.

GaeaSynergy network licensing normally communicates using TCP Port 3000.

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Method 1 – Test the Port Using Telnet

Enable Telnet (If Needed)

On Windows:

1. Open:
   • Control Panel
   • Programs and Features
   • Turn Windows Features On or Off
2. Enable:
   • Telnet Client

Test the Port

On the client computer:

telnet 192.168.1.25 3000

If the connection succeeds:

• The screen will go blank
• This means the port is open

If you receive an error such as:

Could not open connection

then Port 3000 is blocked or the service is not listening.

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Method 2 – Test the Port Using PowerShell

Modern versions of Windows can test ports using PowerShell.

On the client:

Test-NetConnection 192.168.1.25 -Port 3000

If successful, you should see:

TcpTestSucceeded : True

If it says:

TcpTestSucceeded : False

then the client cannot reach the GaeaSynergy License Manager service.

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Step 6 – Open Port 3000 in Windows Firewall

If the port test fails, Windows Firewall may be blocking the connection.

Open Port 3000 on the Server

On the server:

1. Open:
   • Windows Defender Firewall
   • Advanced Settings
2. Select:
   • Inbound Rules
3. Click:
   • New Rule
4. Choose:
   • Port
5. Select:
   • TCP
6. Enter:
   • 3000
7. Select:
   • Allow the connection
8. Apply the rule to:
   • Domain
   • Private
9. Name the rule:
   • GaeaSynergy License Manager

Repeat the same process for Outbound Rules if required by your network policy.

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Step 7 – Verify the License Server is Listening on Port 3000

On the server computer:

1. Open Command Prompt
2. Run:

netstat -an | find "3000"

You should see something similar to:

TCP    0.0.0.0:3000     LISTENING

If nothing appears:

• The License Manager service may not be running
• Another application may be using the port
• Firewall or antivirus software may be interfering

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Step 8 – Verify Client License Settings

Sometimes the connection succeeds but the client is configured incorrectly.

On the client computer verify:

• Networked = Yes
• Correct server name or IP
• Port = 3000
• Appropriate modules selected

If the settings are changed:

1. Click OK
2. Restart GaeaSynergy

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Step 9 – Check Active Locks and Logs

The License Monitor includes tools to help diagnose login problems.

Active Locks

The Active Locks window displays:

• Current users
• Active licenses
• Machine locations

If all licenses are already in use, new users may be denied access.

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Review the Event Log

The Event Viewer in the License Monitor records:

• Login attempts
• Connection errors
• License requests
• Failed authentication events

Reviewing these logs often identifies the exact reason users cannot connect.

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Common Causes of Network Login Problems

Problem	Possible Cause
Cannot ping server	Network connectivity issue
Ping works but login fails	Port 3000 blocked
Port test fails	Firewall or service issue
Login window appears repeatedly	Incorrect IP or hostname
User denied access	No available concurrent licenses
Users intermittently disconnect	VPN or unstable network
Server name fails but IP works	DNS resolution issue

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Best Practices for Reliable Network Licensing

To minimize connection issues:

• Use a static IP address for the server
• Keep Port 3000 open internally
• Avoid changing the server hostname
• Exclude the License Manager from antivirus scanning
• Regularly monitor Active Locks and logs
• Ensure the License Manager service starts automatically

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Final Thoughts

Most GaeaSynergy network login issues can be resolved by verifying:

1. The License Manager service is running
2. The server IP address is correct
3. Port 3000 is open
4. The client can reach the server
5. The network license settings are configured properly

Using tools such as ping, telnet, Test-NetConnection, and netstat can quickly identify where communication is failing and help restore user access to the network license server.