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Date:   Thu, 3 Dec 2020 17:01:20 +0530
From:   Pratyush Yadav <me@yadavpratyush.com>
To:     linux-wireless@vger.kernel.org
Cc:     Ping-Ke Shih <pkshih@realtek.com>
Subject: Realtek RTL8723BE throttling network speed
Message-ID: <20201203113120.mdbhyiqn5zgf37li@yadavpratyush.com>
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Hi,

I have the Realtek RTL8723BE wireless network adapter on my laptop:

  $ lspci | grep -i wireless
  08:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter

running kernel version "5.9.10-arch1-1".

I am seeing some strange behavior on it for some time now. When I power 
on my router and connect to it, I get the full download speed for about 
an hour or so. After that the speed throttles to around 60-70 KB/s. 
Other devices connected to the router continue work at full speed.

If I power cycle the router, it again works at full speed for about an 
hour or two and then throttles back to around 60-70 KB/s.

Has anybody ever seen any problem like this? Any fixes for this? Or at 
least any pointers to where I can start looking in the driver source?

Any help would be appreciated because this is quite annoying having to 
restart the router every hour or so.

-- 
Regards,
Pratyush Yadav