启用NetworkManager导致systemd-networkd-wait-online服务失败的问题求助

我刚入坑Ubuntu Server不久，最近在编辑netplan配置文件，想把NetworkManager设为网络渲染器。我的yaml配置文件内容如下：

network:
  ethernets:
    eno1:
      dhcp4: true
  version: 2
  renderer: NetworkManager

如果我删掉renderer: NetworkManager这一行，systemd-networkd-wait-online.service就能正常启动，相关系统日志如下：

-- Boot f8c386c2c80b40b983635e474ef9129c --
Jan 17 22:06:11 server systemd[1]: Starting Wait for Network to be Configured...
Jan 17 22:06:16 server systemd[1]: Finished Wait for Network to be Configured.
Jan 18 08:10:17 server systemd[1]: systemd-networkd-wait-online.service: Deactivated successfully.
Jan 18 08:10:17 server systemd[1]: Stopped Wait for Network to be Configured.

但一旦加上这行renderer配置，这个服务就会超时失败，日志如下：

-- Boot 03b42ba713bb4da4b5cf96600ae9f67f --
Jan 18 08:10:39 server systemd[1]: Starting Wait for Network to be Configured...
Jan 18 08:12:39 server systemd-networkd-wait-online[670]: Timeout occurred while waiting for network connectivity.
Jan 18 08:12:39 server systemd[1]: systemd-networkd-wait-online.service: Main process exited, code=exited, status=1/FAILURE
Jan 18 08:12:39 server systemd[1]: systemd-networkd-wait-online.service: Failed with result 'exit-code'.
Jan 18 08:12:39 server systemd[1]: Failed to start Wait for Network to be Configured.
Jan 18 08:23:08 server systemd[1]: Starting Wait for Network to be Configured...
Jan 18 08:25:08 server systemd-networkd-wait-online[5857]: Timeout occurred while waiting for network connectivity.
Jan 18 08:25:08 server systemd[1]: systemd-networkd-wait-online.service: Main process exited, code=exited, status=1/FAILURE
Jan 18 08:25:08 server systemd[1]: systemd-networkd-wait-online.service: Failed with result 'exit-code'.
Jan 18 08:25:08 server systemd[1]: Failed to start Wait for Network to be Configured.

有没有大佬能指导我解决这个问题？另外想请教下，为什么会出现这种情况呢？

备注：内容来源于stack exchange，提问作者Ashkan