即使在驱动程序安装16.04.2服务器LTS后WIFI仍无法运行

我已将其设置为dhcp以测试是否正常工作：输出：

$ sudo ifdown wlp3s0 && sudo ifup -v wlp3s0 ifdown: interface wlp3s0 not configured Configuring interface wlp3s0=wlp3s0 (inet) /bin/run-parts --exit-on-error --verbose /etc/network/if-pre-up.d run-parts: executing /etc/network/if-pre-up.d/ethtool run-parts: executing /etc/network/if-pre-up.d/ifenslave + [ inet = meta ] + IF_BOND_SLAVES= + [ ] + [ ] + [ -z ] + exit run-parts: executing /etc/network/if-pre-up.d/vlan run-parts: executing /etc/network/if-pre-up.d/wireless-tools /sbin/dhclient -1 -v -pf /run/dhclient.wlp3s0.pid -lf /var/lib/dhcp/dhclient.wlp3s0.leases -I -df /var/lib/dhcp/dhclient6.wlp3s0.leases wlp3s0 Internet Systems Consortium DHCP Client 4.3.3 Copyright 2004-2015 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/wlp3s0/80:e6:50:29:1a:3a Sending on LPF/wlp3s0/80:e6:50:29:1a:3a Sending on Socket/fallback DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 3 (xid=0x405f0745) DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 6 (xid=0x405f0745) DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 15 (xid=0x405f0745) ...OMITTED!!!! ... No DHCPOFFERS received. No working leases in persistent database - sleeping. /bin/run-parts --exit-on-error --verbose /etc/network/if-up.d run-parts: executing /etc/network/if-up.d/000resolvconf run-parts: executing /etc/network/if-up.d/ethtool run-parts: executing /etc/network/if-up.d/ifenslave + [ inet = meta ] + [ ] run-parts: executing /etc/network/if-up.d/ip run-parts: executing /etc/network/if-up.d/openssh-server run-parts: executing /etc/network/if-up.d/upstart 

请参阅其他wifi信息：

 $ iwconfig wlp3s0 IEEE 802.11abg ESSID:off/any Mode:Managed Access Point: Not-Associated Retry short limit:7 RTS thr:off Fragment thr:off Power Management: off lo no wireless extensions. ens9 no wireless extensions. 

在我的路由器上配置无线：

 Security: WPA-PSK/WPA2-PSK WIFI PASSWORD (security key) tempest123 WIFI Network Name (SSID) VM1234567 

/ etc / network / interfaces上的输出

  GNU nano 2.5.3 File: /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto ens9 iface ens9 inet dhcp # WIFI auto wlp3s0 iface wlp3s0 inet dhcp wpa-ssid VM1234567 wpa-psk tempest123 

请告诉我您需要哪些其他输出才能对其进行故障排除？

我试过，重新启动，删除配置并再次放回去。 也重新安装了驱动程序。

非常感谢你。

编辑：

 $ rfkill list 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: phy0: Wireless LAN Soft blocked: no Hard blocked: no 2: brcmwl-0: Wireless LAN Soft blocked: no Hard blocked: no eve@Eve:~$ lspci -k | grep -i Ethernet -A3 0b:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM57762 Gigabit Ethernet PCIe Subsystem: Apple Inc. NetXtreme BCM57762 Gigabit Ethernet PCIe Kernel driver in use: tg3 Kernel modules: tg3 

我重新启动了服务器，dhcp正在尝试获取IP，然后在5分钟后超时并在没有IP连接的情况下启动到ubuntu。

我已经在这台服务器上完成了sudo apt upgrade和update。

请让我知道我还需要做什么？