Wireless Projectors dropping off the network; Wireless Projectors loose connection after some time. NEC LT 380 and LT 280 projectors are unable to sustain the connection.
KB ARTICLE TYPE: Troubleshooting
RELATED PRODUCTS: MC3050, AP300
RELATED SOFTWARE VERSIONS: 3.4-135
KEYWORDS: NEC Projector LT 380, LT 280, controller, ESS
STEPS TAKEN FOR TROUBLESHOOTING:
STEP 1: Created a new ESS profile, mapped it to WEP security profile and associated it with a VLAN.
STEP 2: Enabled the port 7142 for upstream and downstream traffic. Projector uses port 7142 for communication.
STEP 3: Prevented the Projector to go to sleep mode. Power save options were turned off,
STEP 4: DTIM Period on that ESS was set to 1
STEP 5: Prioritized the traffic originating from Projector’s VLAN by defining a subnet based QoS rule in the controller.
RESOLUTION: Projectors were able to sustain the connection.
ROOT CAUSE: It could not be identified conclusively as I had to modify multiple attributes in the configuration.
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