# Troubleshooting

- [Security Boot Fail](https://neupokoev-n.gitbook.io/pxe-boot/troubleshooting/security-boot-fail.md)
- [TFTP server](https://neupokoev-n.gitbook.io/pxe-boot/troubleshooting/tftp-server.md)
- [PXE-T01: File not found](https://neupokoev-n.gitbook.io/pxe-boot/troubleshooting/pxe-t01-file-not-found.md)
- [PXE-E16: No offer received](https://neupokoev-n.gitbook.io/pxe-boot/troubleshooting/pxe-e16-no-offer-received.md)
- [PXE-E21: Remote boot cancelled](https://neupokoev-n.gitbook.io/pxe-boot/troubleshooting/pxe-e21-remote-boot-cancelled.md)
- [Update option ROM on the NIC](https://neupokoev-n.gitbook.io/pxe-boot/troubleshooting/pxe-e21-remote-boot-cancelled/update-option-rom-on-the-nic.md)
- [PXE-E23: Client received TFTP error from server](https://neupokoev-n.gitbook.io/pxe-boot/troubleshooting/pxe-e23-client-received-tftp-error-from-server.md)
- [Invalid DOS header magic](https://neupokoev-n.gitbook.io/pxe-boot/troubleshooting/invalid-dos-header-magic.md)
- [Unable to fetch TFTP image: Invalid Parameter](https://neupokoev-n.gitbook.io/pxe-boot/troubleshooting/unable-to-fetch-tftp-image-invalid-parameter.md)
- [EFI boot manager](https://neupokoev-n.gitbook.io/pxe-boot/troubleshooting/efi-boot-manager.md)


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