Why does it take a very long time for all cameras to connect after launching GV-Recording server?
Answer:
GeoVision has recently encountered a case where it takes a very long time for the cameras to be connected after user launches recording server software and it was later confirmed it was due to Windows port limitation creating a queue waiting for the next port to be made available for connection.
If you encounter a similar case, you may first verify if the ports needed by the software is limited:
*Note please make sure GV-Software is running while attempting this*
1. Launch and run Windows PowerShell by as Windows Administrator
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2. In the command prompt, enter the following command to see the ports currently in use.
Get-NetTCPConnection | Where-Object { $_.State -in 'Established', 'Listen', 'TimeWait' } | Group-Object -Property State | Select-Object Name, Count
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3. From the same command prompt window, enter the following command.
netsh int ipv4 show dynamicport TCP
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Therefore, this suggests the port needed by software (18122) is limited by the current setting (16384)
To improve this, we can try adjusting the maximum dynamic TCP port limit:
1. In the PowerShell window, please then enter the following command to set the maximum limit to 64512
netsh int ipv4 set dynamic tcp start=1024 num=64512
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2. Enter the following command to verify if change is made successfully (no Windows restart required)
netsh int ipv4 show dynamicport TCP
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After adjustment, try restarting the software and see if wait time for cameras connecting to the recording server software is reduced.