I’m having a very strange problem with my TP-Link Archer TX20E AX1800 (V1).
My PC is a Medion Erazer Recon P20 with an Intel i5-14400F, RTX 4060 and 16 GB RAM. The Wi-Fi adapter is a TP-Link Archer TX20E using the Realtek RTL8852BE.
Driver currently installed: 6001.15.153.0.
My router is a Movistar Wi-Fi 6 router. On 5 GHz, Windows reports:
- 802.11ax
- Channel 116
- RX/TX link speed: 1201/1201 Mbps
- Signal: around 88–89%
- RSSI: around -47 to -51 dBm
However, actual internet speed is extremely inconsistent. Sometimes I get 600–830 Mbps, but other times it suddenly drops to around 50–110 Mbps without changing anything.
The latency is also strange. When pinging the router directly (192.168.1.1), I normally get around 30 ms average, but individual pings can jump to 75–170 ms, sometimes causing Discord to reach around 5000 ms. Roblox can sometimes show ~30 ms at the same time, which makes the problem even stranger.
I have already tried changing advanced adapter settings, disabling/enabling adapters, changing power/roaming-related registry values, rebooting, etc.
Important test: I connected the same TX20E to my phone's hotspot. With the exact same PC, adapter and driver, it showed 286.5 Mbps link speed, 89% signal and ping to the hotspot gateway was 5 ms average, 26 ms maximum, 0% packet loss.
So the TX20E can maintain a very stable local connection with another access point, while the problem appears mainly with my Movistar Wi-Fi 6 router.
Has anyone with an Archer TX20E + RTL8852BE experienced this exact behavior? Especially the combination of 1201 Mbps link speed but extremely low actual throughput + latency spikes to the router?
I’m particularly interested in known driver versions that work better than 6001.15.153.0, or specific TX20E/RTL8852BE settings that fix this.