Google (GOOG) and Microsoft (MSFT) have both joined a fight to stop Marriott International (MAR) from Wi-Fi blocking in its hotels.

Marriott and the American Hospitality & Lodging Association have petitioned the Federal Communications Commission (FCC) to allow it to block Wi-Fi Networks set up by customers. The hotel chain claims that Wi-Fi blocking would protect its customers from unsafe networks, reports The Verge.

Google and Microsoft have filed complaints against the petition to allow Wi-Fi blocking. The two companies made sure to mention that devices that interfere with radio signals are illegal. They also argued that the move would force users to pay for Wi-Fi provided by the hotel, The Verge notes.

“While Google recognizes the importance of leaving operators flexibility to manage their own networks, this does not include intentionally blocking access to other Commission-authorized networks, particularly where the purpose or effect of that interference is to drive traffic to the interfering operator’s own network (often for a fee),” Google told ZDNet.

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