Samsung is facing a fresh patent infringement lawsuit in the US, this time over something as fundamental as how its Galaxy phones connect to Wi-Fi.

The case, filed in the US District Court for the Eastern District of Texas, names both Samsung Electronics and Samsung Electronics America as defendants.

According to TheBiz, Saral Networks LLC claims Samsung S series phones from Galaxy S20 and Galaxy S26 series are infringing on US Patent No. 9,363,709, a technology designed to automate complex network configuration.

Wi-Fi automation tech

At the heart of the complaint is IPv6’s Stateless Address Autoconfiguration. When a Galaxy device connects to Wi-Fi, the router sends a network prefix to the device, which then automatically generates IP addresses, encryption settings, and more.

Saral argues this entire process mirrors its patented method, which uses a unique Network Identification assigned to each device to calculate those settings automatically via an algorithm.

It’s worth noting that Saral isn’t targeting just one or two devices. The complaint covers everything from the Galaxy S20 all the way through the S26 series, plus tablets, laptops, and televisions.

Saral stated it analyzed internal source code data from a Galaxy S25 device and found IPv6 address generation and network autoconfiguration routines that it says clearly demonstrate infringement.

Using a company’s publicly released code as evidence against it is a move that tends to hold up well in court, and Samsung’s legal team will need a precise counter-argument.

Samsung has not yet issued a public response to the lawsuit.

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