WordPress Login authentication requires same IP + Browser

snippet.php

<?php
add_action( 'wp_login', 'set_user_agent', 10, 2 );
add_action( 'init', 'check_user_agent', 1 );

function set_user_agent( $user_login, $user ) { 
	$user_agent = sanitize_text_field( $_SERVER['HTTP_USER_AGENT'] );
	$user_ip    = sanitize_text_field( $_SERVER['REMOTE_ADDR'] );
	
	update_user_meta( $user->ID, 'user_agent', $user_agent );
	update_user_meta( $user->ID, 'user_ip', $user_ip );
}

function check_user_agent() {
	if( !is_user_logged_in() ) {
		return;
	}
	
	$user_agent     = sanitize_text_field( $_SERVER['HTTP_USER_AGENT'] );
	$set_user_agent = get_user_meta( get_current_user_id(), 'user_agent', true );
	
	$user_ip        = sanitize_text_field( $_SERVER['REMOTE_ADDR'] );
	$set_user_ip    = get_user_meta( get_current_user_id(), 'user_ip', true );

	if( $user_agent != $set_user_agent || $user_ip != $set_user_ip ) {
		wp_logout();
		wp_redirect( site_url() );
		exit;
	}
}