Archer A20 - Can't get WAN to 1000mbps

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Archer A20 - Can't get WAN to 1000mbps

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Archer A20 - Can't get WAN to 1000mbps
Archer A20 - Can't get WAN to 1000mbps
2020-11-08 20:42:41 - last edited 2021-11-30 07:16:07
Model: Archer A20  
Hardware Version: V3
Firmware Version: 1.0.3 Build 20191026 rel.16299(5553)

Hello everyone.

 

Here's my issue: No matter how I connect my Archer A20 to my cable modem (Motorola MB7621), I get reduced speeds. Here's what I've tried:

  • I contacted my cable company and confirmed that I get 600mbps down with my package.
  • I connect my PC to the router directly. I get download speeds of over 600mbps. The router light is green, indicating gigabit mode.
  • I connect my A20 to the modem. I get download speeds ranging from 5mbps-90mbps, but never higher. The router light is orange, indicating fast ethernet.
  • I followed the FAQ article here and checked what my router says for Internet. The Internet Negotiation Speed is 100mbps.
  • I went to Advanced > System Tools >System Parameters and confirmed that my Port Negotiation setting is Auto Negotiate.
  • I tried setting Port Negotiation to 1000mbps Full Duplex. When I do this, the router gives an error says WAN is not connected.
  • I've tried four different cables, including a brand new Cat6 cable I purchased today. Nothing changed. I tried using the same cable that worked when I connected my PC directly to the modem. Nothing changed.
  • I performed a Factory Reset from the Advanced > System Tools > Backup and Restore > Factory Restore option. I tried all of the above again, and received the same results.

 

I am at my wits end. I can see that other ports are going to 1000mbps, but just not the WAN port. I bought the router in April. This is incredibly frustrating. Any ideas?

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#1
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1 Accepted Solution
Re:Archer A20 - Can't get WAN to 1000mbps-Solution
2020-11-15 19:06:57 - last edited 2021-11-30 07:16:07
Just to close this out - Support determined my device was faulty and agreed to replace it.
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#4
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Re:Archer A20 - Can't get WAN to 1000mbps
2020-11-09 15:40:41
In point two. I assume you mean modem and not router. After you put in the new cat6 cable, did you power cycle the modem, router, and PC? Power all three down, disconnect all the Ethernet cables except for the one to the modem and the one to the PC, power up the modem and wait for it to stabilize, then power up the router and wait for it to stabilize, and then power up the PC and retest. Are you using the power adapter that came with the router?
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#2
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Re:Archer A20 - Can't get WAN to 1000mbps
2020-11-09 15:57:25

@ArcherC8 you're right - sorry for the confusion. I get those speeds when I connect the PC to the MODEM directly. 
 

The Cat6 cable is currently connecting the router and the modem. I ha e shut off everything and power-cycled it a number of times, per requests from chat tech support - inclusive of resetting the router via the button on the back and the software reset. I've now currently got an escalated support ticket open and they're looking at replacing the device. Thanks for the help!

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#3
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Re:Archer A20 - Can't get WAN to 1000mbps-Solution
2020-11-15 19:06:57 - last edited 2021-11-30 07:16:07
Just to close this out - Support determined my device was faulty and agreed to replace it.
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#4
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Re:Archer A20 - Can't get WAN to 1000mbps
2021-11-29 14:43:51

@quincy_crow Same thing happened to me could not figure it out, got Amazon to send me another.

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#5
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Re:Archer A20 - Can't get WAN to 1000mbps
2021-11-29 15:40:37

@dylan_15 - definitely the faster path. Trying to resolve this through TP Link was an exercise in futilty. I wouldn't do it that way again. 

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