Security Gateway Manual Netgate-8300
2.1.6 Troubleshooting
Serial Device Missing
With a USB serial console there are a few reasons why the serial port may not be present in the client operating system,
including:
No Power
Some models require power before the client can connect to the USB serial console.
USB Cable Not Plugged In
For USB consoles, the USB cable may not be fully engaged on both ends. Gently, but firmly, ensure the cable
has a good connection on both sides.
Bad USB Cable
Some USB cables are not suitable for use as data cables. For example, some cables are only capable of delivering
power for charging devices and not acting as data cables. Others may be of low quality or have poor or worn
connectors.
The ideal cable to use is the one that came with the device. Failing that, ensure the cable is of the correct type
and specifications, and try multiple cables.
Wrong Device
In some cases there may be multiple serial devices available. Ensure the one used by the serial client is the correct
one. Some devices expose multiple ports, so using the incorrect port may lead to no output or unexpected output.
Hardware Failure
There could be a hardware failure preventing the serial console from working. Contact Netgate TAC for assis-
tance.
No Serial Output
If there is no output at all, check the following items:
USB Cable Not Plugged In
For USB consoles, the USB cable may not be fully engaged on both ends. Gently, but firmly, ensure the cable
has a good connection on both sides.
Wrong Device
In some cases there may be multiple serial devices available. Ensure the one used by the serial client is the correct
one. Some devices expose multiple ports, so using the incorrect port may lead to no output or unexpected output.
Wrong Terminal Settings
Ensure the terminal program is configured for the correct speed. The default BIOS speed is 115200, and many
other modern operating systems use that speed as well.
Some older operating systems or custom configurations may use slower speeds such as 9600 or 38400.
Device OS Serial Console Settings
Ensure the operating system is configured for the proper console (e.g. ttyS1 in Linux). Consult the various
operating install guides on this site for further information.
© Copyright 2024 Rubicon Communications LLC 36
To Next Page
Loading...
