Abstract: The disclosure describes, in part, techniques for attempting to diagnose the cause of a wireless connection problem in a client computing device and, in response, performing one or more actions for remedying the problem. In some instances, the techniques describe the client device communicating with one or more other client devices in the environment to determine whether they are connected to the WAP using the same password or a different password as the client device. If the former, then the client device may determine that the network stack is likely the cause of the connection error and may attempt to restart the network stack to current problem. If the other devices indicate that they are using the same password, however, then the client device may prompt a user to re-enter the network password.

Abstract: Techniques for improving the power management of devices are described. In an example, a device transitions into a power save mode. While in the power save mode, the device performs a number of operations. The operations include transitioning into an awake state and determining that the device has no data to transmit to a network access device. The operations also include determining a sequence number associated with data transmission to the network access device. The operations further include generating a frame that includes a header field and a payload field. The header field includes the sequence number and power management data. The power management data indicates a transition of the device to the awake state. Additionally, the operations include transmitting the frame to the network access device.

Abstract: Technologies for path selection in wireless mesh network of wireless network devices are described. One method includes receiving a first response from a second mesh network device and a second response wirelessly from the second mesh network device, the first response associated with a first request to establish a first wireless path with a third mesh network device and the second response associated with a second request to establish a second wireless path with a fourth mesh network device. The method determines that the first response and the second response include a same sequential number (SN) for the second mesh network device. The method forwards the first response to the third mesh network device and forwards the second response to the fourth mesh network device.

Abstract: Technologies directed to access point (AP) classification and selection to minimize a number of disconnect messages and achieve better throughput and reduce latency when a device is presented with multiple basic service set identifiers (BSSIDs) for AP selection are described. One method receives disconnect metrics from wireless devices, the disconnect metrics including a reason code associated with a disconnect message and a BSSID and an Organizationally Unique Identifier (OUI) associated with an AP. The method identifies a set of APs using a reason code for a load balancing or band steering operation by clustering the disconnect metrics. The method receives a query with a first BSSID and a first OUI associated with a first AP and determines that the first AP is part of the set of APs using the reason code. The method sends a response with the reason code being used for load balancing or band steering operation.

Abstract: Technologies directed to reducing medium access contention within a wireless network are described. One method includes a first wireless device (e.g., an access point (AP) or mesh station) receiving first data with a first schedule from a second wireless device. Both wireless devices operate on a first channel or an adjacent channel in a wireless network. The first schedule defines a first interval during which the second wireless device transmits or receives frames on the first channel or the second channel. The first wireless device generates a second schedule that defines a second interval during which the first wireless device transmits or receives frames on the first or second channels, the second interval being non-overlapping with the first interval. First wireless device sends second data with the second schedule to the second AP device and communicates a data frame with a device connected to the first wireless device according to the second schedule.

Abstract: A wireless mesh network includes a first wireless access point (WAP) device designated as a primary device, where the first WAP device provides network connectivity to a plurality of client devices over a first dynamic frequency selection (DFS) channel. A second WAP device is designated as a secondary device to the first WAP device on the first DFS channel. In response to detection of a radar event by the first WAP device: the first WAP device transitions to being the secondary device on the first DFS channel; the second WAP device transitions to being the primary device on the first DFS channel; and the second WAP device performs a channel availability check (CAC) on a second DFS channel and communicates availability of the second DFS channel to the first WAP device.

Abstract: Techniques for increasing the security and reliability of frame transmission are described. In an example, a network access device transmits a first frame indicating that a protected frame is to be used for a power mode change. The network access device receives a second frame that includes an identifier of a device and a change to a power mode of the device. The network access device determines whether the second frame is protected. In addition, the network access device determines whether data received for the device is to be stored prior to transmission to the device based at least in part on whether the second frame is protected.

Abstract: Techniques for improving the power management of devices are described. In an example, a device transitions into a power save mode. While in the power save mode, the device performs a number of operations. The operations include transitioning into an awake state and determining that the device has no data to transmit to a network access device. The operations also include determining a sequence number associated with data transmission to the network access device. The operations further include generating a frame that includes a header field and a payload field. The header field includes the sequence number and power management data. The power management data indicates a transition of the device to the awake state. Additionally, the operations include transmitting the frame to the network access device.

Abstract: A wireless access point device includes a radio to establish a communication link on a first primary channel using a wireless local area network (WLAN) protocol. The communication link has an operating channel bandwidth and a communication link bandwidth that is adjustable to be identical to or lower than the operating channel bandwidth. The operating channel bandwidth includes the first primary channel and a plurality of secondary channels. The WAP device is to determine that received data, which contains in-phase and quadrature (I/Q) values, does not include a valid WLAN frame; determine that a first secondary channel of the plurality of secondary channels has an interference signal signature via application of frequency domain analysis on the I/Q sample values; and modify the communication link bandwidth from a first frequency range to a second width frequency range, which does not include the first secondary channel.

Abstract: Technology for network loop detection in a hybrid mesh network is described. In one embodiment, processing logic receives a network event message indicating a change in a network topology of a mesh network and, responsive to the network event message, determines that the mesh network includes at least one network loop comprising a plurality of communication links connecting two nodes of the mesh network. The processing logic further determines that the at least one network loop includes at least one wired communication link and disables at least one of the plurality of communication links to disconnect the at least one network loop.

Abstract: Technologies transmit scheduling in multi-radio devices are described. One multi-radio device includes first and second radios and a scheduler circuit. The scheduler circuit outputs a first signal to the radios in a first mode in which the first radio is transmitting first data and the second WLAN radio is transmitting second data concurrently. The first signal increases a first clear channel assessment energy detect (CCA-ED) threshold to a second CCA-ED threshold. The scheduler circuit outputs a second signal to the second WLAN radio in a second mode. The second signal causes transmission of fourth data to be delayed until after the first radio completes reception of third data. In a third mode, the scheduler circuit outputs a third signal to the first WLAN radio. The third signal causes transmission of fifth data to be delayed until after the second radio completes reception of sixth data.

Abstract: Technologies directed to allow a wireless network device with a single wireless local area network (WLAN) radio to act as a mesh station (Mesh STA) and also an access point (AP) are described. A processor sends data in a specified mode, via a radio, to identify itself as a mesh station in the mesh network and an AP in an access network. The processor receives a first frame via the radio and determines that the first frame is directed to the mesh station and receives a second frame via the radio and determines that the second frame is directed to the AP. The processor processes the first frame as a mesh frame using first processing logic and processes the second frame as an AP frame using second processing logic.

Abstract: Techniques are described for an unbuffered multicast delivery mode representing the capability of transmitting a multicast frame within a same DTIM interval during which the multicast frame is received. In an example, a network access device determines that a first computing device is in a power saving mode. The network access device receives, during a DTIM interval while the first computing device is in the power saving mode, a multicast frame destined to a multicast MAC address. The network access device determines an association between the multicast MAC address and a device MAC address of a second computing device. The network access device sends, during the DTIM interval and based on the association, the multicast frame to the second computing device.

Abstract: Network hardware devices organized in a wireless mesh network (WMN). A first mesh network device includes processing logic that detects an error condition of a first wireless link to a next hop node in a wireless path between a second mesh network device and a third mesh network device. The processing logic sends, via a first radio of the first mesh network device, a first frame with a first path error message over a second wireless link to a precursor hop node in the wireless path. The first path error message identifies the error condition of the first wireless link. The processing logic generates a second frame with a copy of the first path error message and sends, via a secondary radio of the first mesh network device, the second frame with the copy of the first path error message.

Abstract: Systems and methods of security monitoring using a learning process are provided. Intelligent security systems may perform a learning process to observe the paths of travel by occupants, as detected by various sensors distributed throughout a monitored location over a period of time. After the security system is initially installed, the system may learn the various paths taken by occupants of the house by keeping track of the sequence in which the sensors are activated due to normal human activity. Based on this data, a fully connected graph of sensors with all valid interconnections between sensors is available to the security system.

Abstract: Technologies for path selection in wireless mesh network of wireless network devices are described. One method includes receiving a first response from a second mesh network device and a second response wirelessly from the second mesh network device, the first response associated with a first request to establish a first wireless path with a third mesh network device and the second response associated with a second request to establish a second wireless path with a fourth mesh network device. The method determines that the first response and the second response include a same sequential number (SN) for the second mesh network device. The method forwards the first response to the third mesh network device and forwards the second response to the fourth mesh network device.

Abstract: Network hardware devices organized in a wireless mesh network (WMN). A first mesh network device performs a three-stage discovery protocol; in a first stage, a discovery scan uses a first radio to find a set of neighbor devices in proximity; in a second stage, a discovery locate probe process is performed on a secondary discovery channel that is from a same frequency band group as a first DFS channel; in a third stage, a CAC is performed via the first DFS channel and, after the CAC, a neighbor peering request is sent and a neighbor peering response is received from a second mesh network device via a second radio. The neighbor peering response confirms establishment of a first communication channel between the second radio of the first mesh network device and a radio of the second mesh network device over the first DFS channel.

Abstract: Technologies for preventing insider attacks in a wireless network are described. A processor of a first device receives a disconnect frame with i) a source address that identifies a wireless access point (WAP) device in a wireless network and ii) a destination address that the disconnect frame is addressed to all devices in the wireless network. The processor sends a frame to the WAP device after expiration of a configurable delay and receives an acknowledgment frame from the WAP device. The processor determines that the disconnect frame is a non-authorized disconnect frame received from a second device and is not to be processed. The processor can increment a first counter value to a second counter value, the second counter value indicating how many times a non-authorized disconnect frame is received at the first device. The processor sends a management frame with the second counter value to the WAP device.

Abstract: Technology for event propagation and action coordination in a mesh network is described. In one embodiment, a master mesh node for a first communication channel in a mesh network receives a first event notification message from a first dependent mesh node associated with the master mesh node. The first event notification message pertains to a first event detected by the first dependent mesh node. In response, the master mesh node generates a first action message specifying a first action associated with the first event and sends the first action message to the first dependent mesh node and to a second dependent mesh node associated with the master mesh node. The master mesh node, the first dependent mesh node, and the second dependent mesh node all exchange communications with each other using the first communication channel in the mesh network.

Abstract: A method includes determining, by a cloud computing system, a number of radar events detected by wireless access point (WAP) devices of a wireless mesh network and by channels associated with respective ones of the WAP devices. The method includes determining a first WAP device has detected a fewest number of radar events and that a first DFS channel, of the first WAP device, has detected a fewest number of radar events as compared with a number of radar events detected via each of the other DFS channels of the first WAP device. The method includes assigning the first WAP device to be a master on the first DFS channel and transmitting, to the first WAP device, a message containing first assignment information regarding the first WAP device being assigned as the master on the first DFS channel.