Update FAQ.md

docs/en/advanced/FAQ.md

@@ -95,6 +95,7 @@ this may cause Snap Hutao failed to check validation of the cookie
 - There are two factors associated with game account login status: network and device ID
 - This issue usually caused by:
   - Change of public IP address
+  - Change of network adapter or network adapter MAC address
   - Failed saving operation, no real login status been saved (Snap Hutao cannot detect if the status is real valid)
     - Make sure to enter the game after sign in
     - Make sure the game process is gone after closing the game

docs/zh/advanced/FAQ.md

@@ -98,6 +98,7 @@ Start-Process shell:AppsFolder\60568DGPStudio.SnapHutao_ebfp3nyc27j86!App -verb
 - 保存游戏登录状态的要素有两个：网络环境和设备 ID
 - 导致该问题的常见原因是：
   - 网络环境频繁变换，如公网 IP 更换
+  - 网络设备变换，比如网卡更新、MAC 地址更换
   - 操作失误，导致实际上根本没有保存登录状态（空的登录状态无法避免被胡桃识别）
     - 确认你的帐号已登录后，进入游戏
     - 关闭游戏后，确定游戏进程已关闭