Thanks and sorry for not replying earlier. I thought this site will notify me by e-mail about any reply and that had not happened (my fault, I should have checked directly. Please forgive me about this).
The way I set up my OpenVPN connection was following a set of instructions I received from my IT guy. They were done for setting an Ethernet connection. I followed that instruction an after I managed to properly install the client.ovpn file the VPN seems to be working (I can see a green light on the icon and the security padlock sign on it).
Now, since I have no Ethernet connection available, my question was how can derive (transform or whatever is appropriate to do) from that existing ethernet VPN connection that seems to be working, to my active WIFI connection.
Alternatively, If you can provide some guidelines on how I can set up the same connection using the same client.ovpn file but using a WIFI connection instead of an Ethernet one it would be of great as well.
Just in case it helps, follows the last lines in the most recent log file: (For security reasons, I change to XX.XXX.XXX.XXX the actual IP address and port number at the start and the end)
Sat Apr 11 08:20:02 2020 us=586918 ROUTE_GATEWAY 10.X.X.X/255.255.255.0 I=27 HWADDR=XX:xx:XX:XX:XX:XX
Sat Apr 11 08:20:02 2020 us=586918 OpenVPN ROUTE: OpenVPN needs a gateway parameter for a --route option and no default was specified by either --route-gateway or --ifconfig options
Sat Apr 11 08:20:02 2020 us=586918 OpenVPN ROUTE: failed to parse/resolve route for host/network: 192.168.1.0
Sat Apr 11 08:20:02 2020 us=586918 open_tun
Sat Apr 11 08:20:02 2020 us=586918 TAP-WIN32 device [NETGEAR-VPN] opened: \\.\Global\{4B40E405-F575-49EA-97D1-B2C6050043EA}.tap
Sat Apr 11 08:20:02 2020 us=586918 TAP-Windows Driver Version 9.24
Sat Apr 11 08:20:02 2020 us=586918 TAP-Windows MTU=1500
Sat Apr 11 08:20:02 2020 us=591992 Successful ARP Flush on interface [15] {4B40E405-F575-49EA-97D1-B2C6050043EA}
Sat Apr 11 08:20:02 2020 us=674571 Extracted DHCP router address: 192.XXX.X.1
Sat Apr 11 08:20:07 2020 us=26737 TEST ROUTES: 1/1 succeeded len=1 ret=1 a=0 u/d=up
Sat Apr 11 08:20:07 2020 us=26737 MANAGEMENT: >STATE:1586607607,ADD_ROUTES,,,,,,
Sat Apr 11 08:20:07 2020 us=26737 C:\WINDOWS\system32\route.exe ADD 192.168.1.1 MASK 255.255.255.0 192.XXX.X.1
Sat Apr 11 08:20:07 2020 us=26737 ROUTE: route addition failed using service: The parameter is incorrect. [status=87 if_index=15]
Sat Apr 11 08:20:07 2020 us=26737 Route addition via service failed
Sat Apr 11 08:20:07 2020 us=26737 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
Sat Apr 11 08:20:07 2020 us=26737 Initialization Sequence Completed
Sat Apr 11 08:20:07 2020 us=26737 MANAGEMENT: >STATE:1586607607,CONNECTED,SUCCESS,,XX.XXX.XXX.XXX,XXXXX,,