I found 'Connect to internet with Wi-Fi, while wired to a different LAN through Ethernet' here and tried many of the config changes mentioned in the 6 Answers ... I did not think I should start a new Q., however, I am unable to Comment on that topic due less than 50 reputation here.
I met with some success changing the Automatic metric settings ... however ... I still find I cannot enjoy simultaneous connectivity ... before the metric changes, if I unplugged the notebook's Ethernet cable, I had Wi-Fi connectivity to the internet via my Mobile Hotspot ... as soon as I reconnected the notebook's Ethernet cable (to my router & LAN), I was able to browse my two LAN network drives but lost connectivity to the internet ... now, with the metric changes, the situation is exactly reversed, so, I think I'm close(r) to a solution, I just have to identify the conflicting IP config setting(s).
I'll paste in two TXT file captures of ipconfig /all (obtained in a CMD window) to illustrate where I'm currently at with all this.
NIC LAN (static IPs & metric of 2) & Wi-Fi Hotspot (DHCP IP & metric of 1), 1238PDT 08OCT20.txt
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\T40 User>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : IBM_T40_XP
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter TELUS Wi-Fi Modem - T3200M NetBEUI LAN, TCP IP LAN WAN:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network Connecti
on
Physical Address. . . . . . . . . : 00-09-6B-53-E6-66
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.43.200
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
Ethernet adapter FFF-2.4G:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Linksys Wireless-G Notebook Adapter
WPC54G Ver.3
Physical Address. . . . . . . . . : 00-18-F8-E2-23-7C
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.43.194
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.43.1
DHCP Server . . . . . . . . . . . : 192.168.43.1
DNS Servers . . . . . . . . . . . : 192.168.43.1
Lease Obtained. . . . . . . . . . : Thursday, October 08, 2020 12:18:58
Lease Expires . . . . . . . . . . : Thursday, October 08, 2020 13:18:58
C:\Documents and Settings\T40 User>
NIC LAN (static IPs, Preferred DNS server & metric of 2) & Wi-Fi Hotspot (DHCP IP & metric of 1), 1243PDT 08OCT20.txt
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\T40 User>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : IBM_T40_XP
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter TELUS Wi-Fi Modem - T3200M NetBEUI LAN, TCP IP LAN WAN:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network Connecti
on
Physical Address. . . . . . . . . : 00-09-6B-53-E6-66
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.43.200
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 192.168.43.1
Ethernet adapter FFF-2.4G:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Linksys Wireless-G Notebook Adapter
WPC54G Ver.3
Physical Address. . . . . . . . . : 00-18-F8-E2-23-7C
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.43.194
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.43.1
DHCP Server . . . . . . . . . . . : 192.168.43.1
DNS Servers . . . . . . . . . . . : 192.168.43.1
Lease Obtained. . . . . . . . . . : Thursday, October 08, 2020 12:18:58
Lease Expires . . . . . . . . . . : Thursday, October 08, 2020 13:18:58
C:\Documents and Settings\T40 User>