Network - Correcting Issues with Misconfigured Personal Routers

Wired and wireless routers allow users to connect multiple networked devices to the MSU network, giving each device access to the Internet. However, in certain situations the configuration of the router will interfere with the campus network. These situations are a violation of MSU's MSU's Acceptable Use Policy for Information Technology Resources (KB link). Examples of such situations include, but are not necessarily limited to, configuring a router as a 'rogue' DHCP server and/or utilizing a router responsible for a broadcast storm.

  • 'Rogue' DHCP Server: Setting up a rogue DHCP server - even inadvertently - may cause you to lose access to the network until you correct the problem by either correctly configuring your router, or permanently removing it from the network.

    KB 1056 (KB link) includes information on the proper way to set up your wireless router for use within MSU Residence Halls (including University Apartments). If the instructions in that article do not work for you, MSU IT Service Desk staff will ask you to remove the router from the network and connect your computer directly to the wall port. You will need to contact the manufacturer of your wireless router for technical assistance with that device. Alternatively, users may bring their devices to the MSU Computer Help and Repair Office for assistance as well.

  • Broadcast (aka multicast/unicast) Storm: A broadcast storm occurs when a network system is overwhelmed by continuous multicast or broadcast traffic. When different nodes are sending/broadcasting data over a network link, and the other network devices are rebroadcasting the data back to the network link in response, this eventually causes the whole network to melt down and lead to the failure of network communication. One common indicator of a broadcast storm would be multiple people in a single location experiencing excessive packet loss. This will manifest as web pages unable to load and/or timing out, and may be easily identified using a ping test.

    There are many reasons a broadcast storm occurs, including poor technology, low port rate switches and improper network configurations. These issues often require the router settings to be adjusted or the firmware (software embedded within the device itself) to be updated. You will need to contact the device manufacturer for further technical assistance. Alternatively, users may bring their devices to the MSU Computer Help and Repair Office for assistance as well. Users are encouraged to leave their device disconnected from any and all wall ports until the device settings or software receive the necessary updates.

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