Communication device, non-transitory computer-readable recording medium storing computer-readable instructions for communication device, and method performed by communication device

A non-transitory computer-readable recording medium storing computer-readable instructions for a communication device,

• wherein the computer-readable instructions, when executed by a processor of the communication device, causing the communication device to:
• in a specific situation where an operation state of the communication device is a parent station state in which the communication device operates as a parent station of a first wireless network, which is a first Wi-Fi network, and N number (N being an integer of 1 or more) of first external devices participate in the first wireless network as child stations, receive an Invitation request from a second external device different from the N number of the first external devices via a wireless interface of the communication device, the Invitation request being a command according to a Wi-Fi scheme for requesting the communication device to belong to a second wireless network, which is a second Wi-Fi network, different from the first wireless network, wherein the first wireless network has a first network access identifier and the second wireless network has a second network access identifier different from the first network access identifier, the second wireless network being a network where the second external device operates as a parent station;
• in a case where the Invitation request is received from the second external device in the specific situation, disconnecting a wireless connection with each of the N number of the first external devices that are the child stations in the first wireless network;
• in a case where the Invitation request is received from the second external device in the specific situation, shift the operation state of the communication device from the parent station state to a first state of the first wireless network where the communication device belongs to the second wireless network different from the first wireless network, the first state being a state where the communication device participates in the second wireless network as a child station;
• execute a wireless communication of target data with the second external device via the wireless interface by using the second wireless network after the operation state of the communication device has been shifted from the parent station state to the first state;
• shift the operation state of the communication device from the first state to the parent station state after the wireless communication of the target data has been completed;
• and
• cause M number (M being integer of 1 or more and less than or equal to N) of the first external devices among the N number of the first external devices to participate in the first wireless network again as child stations after the operation state of the communication device has been shifted from the first state to the parent station state.

A communication device comprising:

• a first wireless interface;
• a second wireless interface different from the first wireless interface, a communication speed of a wireless communication via the second wireless interface being slower than a communication speed of a wireless communication via the first wireless interface,
• a processor;
• and
• a memory storing computer-readable instructions therein, the computer-readable instructions, when executed by the processor, causing the communication device to:
• in a specific situation where an operation state of the communication device is a parent station state in which the communication device operates as a parent station of a first wireless network, which is a first Wi-Fi network, and N number (N being an integer of 1 or more) of first external devices participate in the first wireless network as child stations, establish a wireless connection with a second external device different from the N number of the first external devices via the second wireless interface,
• in a case where the wireless connection with the second external device is established, store predetermined information indicating that the wireless connection with the second external device has been established in the memory,
• in the specific situation where the predetermined information is stored in the memory, receive a Probe request from the second external device via the first wireless interface, wherein the first wireless network has a first network access identifier and the a second wireless network, which is a second Wi-Fi network, has a second network access identifier different from the first network access identifier, the second wireless network being a network where the second external device operates as a child station;
• in a case where the Probe request is received from the second external device in the specific situation and under the situation where the predetermined information is stored in the memory, disconnect a wireless connection with each of the N number of the first external devices that are the child stations in the first wireless network;
• in the case where the Probe request is received from the second external device in the specific situation and under the situation where the predetermined information is stored in the memory, shift the operation state of the communication device from the parent station state of the first wireless network to a first state where the communication device belongs to the second wireless network different from the first wireless network, the first state being a state where the communication device participates in the second wireless network as a parent station;
• execute a wireless communication of target data with the second external device via the first wireless interface by using the second wireless network after the operation state of the communication device has been shifted from the parent station state to the first state;
• shift the operation state of the communication device from the first state to the parent station state after the wireless communication of the target data has been completed;
• and
• cause M number (M being an integer of 1 or more and less than or equal to N) of the first external devices among the N number of the first external devices to participate in the first wireless network again as child stations after the operation state of the communication device has been shifted from the first state to the parent station state.