@crispyoz , I was able make the WiFi SSD of the Omage2+ show up somehow after login to the device through serial. I have run wifimanager and enabled the wifi. I am not sure this is what resolved the issue but it was one of few things I have tried.
However, I have a different issue now. I cannot connect the device to my wifi with Omega2 Setup Wizard. It would say "Unable to connect to SSD_name. Please try again" on the web and I see following in the terminal having the devices connected via serial. Is there something I am doing wrong?
[  602.839731] =====================================================
[  602.845911] Rule 1 CCA value : Min Dirtiness (Include extension channel) ==> Select Channel 10
[  602.854741] Min Dirty = 124
[  602.857573] ExChannel = 0 , 0
[  602.860603] BW        = 20
[  602.892128] br-wlan: port 2(ra0) entered forwarding state
[  602.897694] br-wlan: port 2(ra0) entered forwarding state
[  604.889221] br-wlan: port 2(ra0) entered forwarding state
[  608.336487] !!! APCLI LINK UP - IF(apcli0) AuthMode(7)=WPA2PSK, WepStatus(6)=AES!