Confirm where the exclamation point appears:
1. An exclamation mark appears in the network connection at the bottom right foot. You need to check whether the router is connected to the operator's network. Change the network settings to automatic acquisition (DHCP). At the same time, you need to check the whitelist settings of the router.
2. If it appears under "Ethernet Controller", the driver has not been installed yet. Just install the corresponding network card driver;
3. Appear under "Network Adapter", disable the network port with the exclamation mark, and then enable it;
4. If it is a fiber-optic network card, pull out the fiber-optic module first, then disable-enable it, and then insert the fiber-optic module. If an exclamation mark appears after plugging in the fiber-optic module, it means there is a compatibility issue between the fiber-optic module and the network card, and a compatible fiber needs to be replaced. module.
5. You can contact FAE for support.
Check whether PXE is displayed multiple times during the boot process. This will prolong the boot time due to the PXE self-test time. Some motherboards can disable PXE in the motherboard's BIOS, set the system disk as the first startup item, and disable other enablements. item.
1. Determine whether the hardware cannot be recognized or the driver is not installed (Windwos system can check and confirm under ‘Device Manager-Network Adapter/Other Devices’).
2. Prevent the slot from being unrecognizable due to poor contact caused by oxidation (install the network card and plug it in and out two or three times when the power is turned off, and then install it again).
3. Verify that the corresponding installed slot is PCIe protocol, not SATA protocol (since the Mini PCIe slot and Msata slot have the same appearance or are shared, you can check the motherboard's specification sheet or check the motherboard's silk screen. The printed MPCIe is PCIe, the one with MSATA is SATA)
1. In Windows system, enter the device manager and check if there is an 'Ethernet controller' in 'Other Devices'. If so, it means that the hardware has been recognized and the driver has not been installed yet. Just install the driver;
In Linux systems, use the lspci | grep -eth command to check whether there is a card corresponding to the chip. If so, it means that the hardware has been recognized and the driver has not been installed. Just install the driver.
2. Is the network card installed in the wrong slot (for example, the network card of the PCIe interface is installed in the PCI slot, just correct it);
3. On a multi-channel CPU server, when the CPU is not full, the network card happens to be installed in the slot that is not controlled by the CPU. At this time, it needs to be replaced with the corresponding slot of the CPU that is installed and working normally. (by changing the slot);
4. Caused by poor contact of the gold finger (the device is powered off, reinstall the board, plug and unplug the slot two or three times, and then fix the network card);
5. Plug the network card into another motherboard for testing and verification to check whether the network card is defective.
1. In the Windows system, enter the Device Manager and check if there is an Ethernet controller in "Other Devices". If there is, it indicates that the hardware has been recognized and the driver has not been installed yet. Simply install the driver;
Linux system uses the lspci | grep - eth command to check if there is a card corresponding to the chip. If there is, it indicates that the hardware has been recognized and no driver has been installed. Simply install the driver.
2. Is the network card installed in the wrong slot (for example, if the PCIe interface network card is installed in the PCI slot, correct it);
3. On a multi CPU server, when encountering an underfilled CPU, the network card happens to be installed in the slot without CPU control. At this time, it needs to be replaced with the corresponding slot of the CPU that is already installed and working properly. (by replacing the slot);
4. Poor contact with the golden finger (caused by power failure of the device, reinstalling the board and performing two or three insertion and removal operations on the slot before fixing the network card);
5. Insert the network card into another motherboard for testing and verification to check if the network card is faulty.
