Hi, Ava!
Thanks for choosing our community!
You can following the steps below to resolve it!
Restart the SMC2.0 server and trigger the operation of reading the ESN code.
Keep the network card corresponding to the original license.
Record the ESN of the license file. (The storage path of the license on the SMC server is: D:\Huawei Technologies Co., Ltd\Converge Gateway\bin\license_smc.dat/license_smc.dat.bak)
Keep only one network card at a time (others are disabled), use ESNMaker (must use the same version of ESNMaker) to read the ESN of each network card.
Then find the network card that is consistent with the ESN in the license file, and you can keep the network card. Other network cards can be disabled.
I wish your question is resolved.