Persistent Wi-Fi Speed Drop to 100 Mbps on TP-Link BE550 v1 Router

Persistent Wi-Fi Speed Drop to 100 Mbps on TP-Link BE550 v1 Router

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Re:Persistent Wi-Fi Speed Drop to 100 Mbps on TP-Link BE550 v1 Router
2025-06-09 09:16:59 - last edited 2025-06-09 09:17:14

@Mcastrod ,

Thank you for contacting our community.

May I know what is the hardware and firmware version of your router? Please refer to How to find the hardware and firmware version of my TP-Link device

If its hardware is version 1.0, please update firmware to Archer BE550(EU)_V1_1.1.2 Build 20250317, this firmware should resolve the issue.

You can also try the suggestions below:

Joseph-TP wrote

Hi@TheVoodoo,

May I know if your network topology diagram is as follows:

ISP modem—router)))(((client devices

(Note: — stands for wired connection,)))((( stands for wireless connection )

What is the firmware version of your router now? 

  • Please use https://www.speedtest.net  or the speedtest APP/CLI(https://www.speedtest.net/apps) for testing speed accurately. You can also try a few other speedtest servers, other servers might reach better speeds.
  • Please make sure the speed of your ISP/Modem is good by connecting a PC directly into the ISP Modem/Router.
  • Please try different Ethernet cables (CAT5E or above) on the Router.
  • Disable QoS, please access http://tplinkwifi.net and go to Advanced >> QoS to disable it.
  • Disable Parental Control, please go to Advanced >> Parental Control to disable it.
  • If wireless speed is slower than expected, please go to Advanced >> Wireless Settings to change the 5GHz Wi-Fi channel, you may try different channels to find the best one for your environment.
  • Disable SIP ALG and UPNP, please go to Advanced >> NAT Forwarding >> UPNP to disable UPNP, go to Advance >> Security to disable SIP ALG.

 

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