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Archer T3U AC1300 Very Low Down/Up speeds

Joe_Kerr

2025-08-01 20:00:23 - last edited 2025-09-16 01:21:12

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Registered: 2025-08-01

Archer T3U AC1300 Very Low Down/Up speeds

2025-08-01 20:00:23 - last edited 2025-09-16 01:21:12

Tags: #Windows 11 #Network Connectivity #Installation

Model: Archer T3U

Hardware Version: V1

Firmware Version:

Hi, I just bought the Archer T3U(EU, V1.0) and I am using it on a 2.4/5GHz network with a gigabit connection. Problem is I can't go above 25Mbps, on an AMD-powered laptop with Windows 11, even when close to the router. Apparently the device won't use the fastest protocol:

I've tried manually changing the protocol in Devices-advanced settings to make the adapter operate only at IEEE 802.11n, but it did not change the value whatsoever.

I've tried other USB ports, but it didn't improve speed nor did it change the protocol.

I am using the latest drivers available on the tp-link website.

Other devices (phone, tablet) can reach the expected speeds.

Any help would be appreciated.

1 Accepted Solution

Joseph-TP

2025-08-05 05:53:19 - last edited 2025-09-16 01:21:12

Posts: 6392

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Registered: 2024-06-22

Re:Archer T3U AC1300 Very Low Down/Up speeds-Solution

2025-08-05 05:53:19 - last edited 2025-09-16 01:21:12

Hello @Joe_Kerr ,

Thanks for contacting our community.

If you're suffering from the slow speed issue with the wireless adapter, please refer to the following troubleshooting steps:
1. Connect another mobile device to the same Wi-Fi router to check whether the issue is on the router or adapter.
2. Disable the original wireless adapter from the control panel of your PC.
3. Move the computer with the installed adapter about 10-15 feet from your router.
4. If you have a dual-band wireless adapter, please make sure the router supports 5GHZ and connect the wireless adapter to the 5GHz band.
5. Change the wireless settings on the main router, like channel 1/6/11 for 2.4GHz, and channel 36/40/44/48 for 5GHz.

Best Regards.

Welcome to Community！ Get the latest posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware Releases for Archer BE805 V1/BE450 V1 to Support VPN Merge, New ECO Mode, and More! More posts, please see: △ Get the Ongoing Pre-release Firmware for Wi-Fi Routers Here— Subscribe for Updates! Urgent problems with your Wi-Fi Router, Range Extender, or DSL Modem? Please reach out via private Messages or @Joesph-TP in your new thread directly. Click △ Or ☆Recommended Solution if the post/answer helps.

Archer T3U AC1300 Very Low Down/Up speeds

Archer T3U AC1300 Very Low Down/Up speeds

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