Archer c-4000 Losing 10-20 download speed from modem to router

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Archer c-4000 Losing 10-20 download speed from modem to router
Archer c-4000 Losing 10-20 download speed from modem to router
2021-02-21 12:49:47
Hardware Version: V2
Firmware Version: 1.1.1 Build 20190827 rel.78773(5553)

Hello, I have been losing 10-20 mb's download speed on my Archer c-4000. I have reset it many times for it to only go back and lose 10-20 mb's download speed again. I have tried a different ethernet cord still same results. If  I hook directly to modem, I have full speed at 55 mb's download and 5 upload. It says I am up to date on firmware version. I have tried reading through other problems on here for fixes but my menu is different than what I find.

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Re:Archer c-4000 Losing 10-20 download speed from modem to router
2021-02-23 19:01:01

@Zombie55385 

 

Try the following:

 

-Set the application priority to standard (Advanced > QoS > Application Priority)
-Set the QoS speed manually to 1000 Mbps for up and down (Advanced > QoS, top of menu)
-Disable any device priority (Advanced > QoS > Device Priority)
-Disable HomeCare features (Advanced > Security > Antivirus)

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