Unable to get wireless card working properly in DELL D620 laptop - Zorin OS 6.0 (3.2.0) [closed]

Question

I have a DELL D620 laptop running Zorin OS 6.0 (3.2.0) The wireless was working prior to running Update Manager.

Here is the output from some commands:

dell@dell-lt:/$ rfkill list all
0: dell-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
dell@dell-lt:/$ iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.
dell@dell-lt:/$ ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:18:8b:d4:d8:2f  
          inet addr:192.168.1.74  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::218:8bff:fed4:d82f/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:22227 errors:0 dropped:0 overruns:0 frame:0
          TX packets:15027 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:26452734 (26.4 MB)  TX bytes:1708955 (1.7 MB)
          Interrupt:18 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

I am at a loss as to how to get the wireless working!!!

ElliTech