React native's Netinfo gives connectivity status but not actually tells weather any URL is reachable or not

connectivityManager.js

import { TimeoutError } from 'rxjs'
import { ajax } from 'rxjs/ajax'
import { catchError, map, timeout } from 'rxjs/operators'
/**
 * Netinfo method for checking internet connection won't tell weather the internet is actually accessible or not
 * make a test API call to verify
 */
export function isInternetAvailable() {
  ajax('https://google.com').pipe(
    timeout(100),
    map(userResponse => console.log('Got response', userResponse)),
    catchError(err => {
      console.log('An Error occured', err)
      if (err instanceof TimeoutError) {
        console.log('Request Timeout!!')
      }
      return of(err)
    }),
  ).subscribe()
}