Script for changing network settings, why doesn't it work "on the fly"?

Question

Command line

Initially, the script was taken from somewhere on the net, modified a little for myself (sorry for the crooked English):

@ECHO OFF

:: Variables (set IFACE name as in your adapter settings name)
SET IFACE="Ethernet"
SET IP=192.168.0.10
SET IPD=DHCP
SET MASK=255.255.255.0
SET GATEWAY=192.168.0.1
SET GWMETRIC=1
SET DNS1=8.8.8.8
SET DNS2=77.88.8.8

:: Script
SET /P settings="Choose option (1 - STATIC, 2 - DHCP): "
ECHO Current option - %settings%

IF %settings% EQU 1 (GOTO STATIC) ELSE (IF %settings% EQU 2 (GOTO DHCP) ELSE (GOTO WRONG))

:WRONG
ECHO WRONG OPTION!
GOTO QUIT

:STATIC
ECHO Current choosen network settings:
ECHO IP-address: %IP%
ECHO Network mask: %MASK%
ECHO Gateway: %GATEWAY%
netsh interface ip set address %IFACE% static %IP% %MASK% %GATEWAY% %GWMETRIC%
ECHO Primary DNS server: %DNS1%
netsh interface ip set dns %IFACE% static %DNS1% validate=no
ECHO Secondary DNS server: %DNS2%
netsh interface ip add dns %IFACE% %DNS2% index=2 validate=no
GOTO IPSHOWQ

:DHCP
ECHO Current choosen network settings: === %IPD% ===
netsh interface ip set address %IFACE% %IPD%
netsh interface ip set dns %IFACE% %IPD%
GOTO IPSHOWQ

:IPSHOWQ
SET /P IPINFO="Show network configuration? (y - YES, n - NO): "
IF %IPINFO% NEQ y GOTO QUIT

:IPSHOW
::ipconfig /all
netsh interface ip show addresses name=%IFACE%
netsh interface ip show dns name=%IFACE%

:QUIT
ECHO Bye-bye!
pause

And it seems to work, but with quirks: the settings change only when the cable is physically connected, which is not quite what is needed in this case. Without a cable, the script works as it should, but the settings remain the same (judging by the output of ipconfig / all or through the "Details" interface in the "Adapter Properties").
What is wrong and how to win so that the settings change without a connected vituhi?
UPD: The output of these commands in the console:

netsh interface ip show addresses name=%IFACE%
netsh interface ip show dns name=%IFACE%

Always shows changes in DNS server settings, but IP settings remain the same.
PS The metric in this case, as I understand it, did not make sense to specify at all, but I left it as it was in the original script.