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Belkin N300 router intermittent slow wifi speed

Discussion in 'Networking' started by Surferdude949, Jul 28, 2015.

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  1. Surferdude949

    Surferdude949 Thread Starter

    Jul 28, 2015
    Hi all,

    My Belkin N300 wireless router is now experiencing intermittent slow Internet speed. The router is 2 years old and has worked perfectly until last week.

    Here are the troubleshooting steps I completed.

    Internet speed test when directly plugged into the wireless router and cable modem: 30mbps
    Internet speed using laptop wifi: 2 mbps then sometimes works at normal speed
    Called ISP and they verified there was a connectivity to cable modem issue. Did a power cycle for modem and router. Then got full 30mbps from cable modem to ISP using direct connect to laptop.
    tested other devices such as laptops and tablets, all experiencing intermittent slow speed
    when experiencing slow wifi, switched to direct connect ethernet cable to router and got immediate full 30mpbs

    So far all my testing is pointing to the Belkin router's wifi connectivity. I will check on the router's firmware since it has never been updated.
    I also found a thread online suggesting disabling QOS on the router. But this should not be needed as it was working fine for two years since its purchase.

    Any suggestions to what else I can do to resolve this issue?
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