IHG free wifi is a benefit whether or not you are staying at the hotel:

"Standard internet access will be available to all IHG® Rewards Club Members at no additional cost at all IHG hotels located globally with or without a hotel booking and/or qualifying stay. Internet availability in common areas varies by hotel. Internet accessibility, speed, and connectivity in common areas and guest rooms vary by hotel. Details regarding a property's internet accessibility are available at the hotel's registration desk. Please note that The Venetian® and The Palazzo®, an InterContinental Alliance® Resort, do not offer the Free Internet Access benefit, which is instead included in the daily resort fee." https://www.ihg.com/content/us/en/cu...er-tc/2nd-page