Summary; my own rtl8821ae frequent connection lost problem was fixed by
upstream patch b8b8b16352cd ("rtlwifi: rtl8821ae: Fix connection lost
problem") merged for 4.14-rc4.
I've recently fixed a problem very much like the problems reported in
this bug. In particular the loss of WiFi scan
Try latest mainline kernel & latest firmware for rtl8821ae.
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Title:
rtl8821ae WiFI does not work
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The same error is now exhibited with the newly released kernel version
4.10.0-30
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Title:
rtl8821ae WiFI does not work
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Wifi drops with Ubuntu version 16.04.2 LTS (hardware enablement turned
on) with kernel versions 4.10.0-27 and 4.10.0-28. It worked OK with
kernel 4.8.0-58. The kernel upgrade was done when prompted by Ubuntu.
The wifi drops when BBC's iplayer or any of the speed test sites
downloads a lot of
Anton Polukhin, the issue you are reporting is an upstream one. Could
you please report this problem following the instructions verbatim at
https://wiki.ubuntu.com/Bugs/Upstream/kernel to the appropriate mailing
list (TO Larry.Finger, and Realtek WlanFAE CC linux-wireless)?
Please provide a
It uses 2.4GHz b/g/n and there's no way to disable 802.11n or force only
802.11b/g usage.
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Title:
rtl8821ae WiFI does not work on Ubuntu 16.04
Anton Polukhin, to clarify, what version of 802.11 are you using (ex.
802.11n)?
** Tags added: latest-firmware
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Title:
rtl8821ae WiFI does not
Vendor Netgear
Hardware VersionWNDR4000
Firmware VersionV1.0.2.4_9.1.86
GUI Language VersionV1.0.2.4_2.1.17.1
Firmware is up-to-date, I've updated it a few days ago.
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Anton Polukhin, could you please advise to your router firmware version?
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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I've changed the router to Netgear WNDR4000 and the problem still
exists. Previous router TP-LINK WR841N v9 was successfully used by 5
different devices, so the problem is not in the router's firmware. It's
in the rtl8821ae kernel module.
** Changed in: linux (Ubuntu)
Status: Incomplete =>
Anton Polukhin, as per http://www.tp-linkru.com/download/TL-
WR841N_V9.html#Firmware an update to your router's buggy, insecure, and
outdated firmware is available (150331). When you update to this
following how does this improve the situation?
For more on firmware updates and linux, please see
** Tags removed: kernel-bug-exists-upstream-4.8-rc5
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Title:
rtl8821ae WiFI does not work on Ubuntu 16.04
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2) Problems with kernel 4.8-rc6 are mostly the same: tl8821ae does not
loose the connection (at least network manager does not display that),
but the speed drops down to 50KB/s really often. Instead of 2.5 MB/s
connection speed, I have an average of ~100KB/s, with rare peeks up to
2.5MB/s and
1) Manufacturer: TP-LINK
Model: WR841N v9
Firmware: 3.15.9 Build 140625 Rel.64271n
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Title:
rtl8821ae WiFI does not work on Ubuntu
Anton Polukhin:
1) Could you please advise to your router manufacturer, model, and firmware
version?
2) Could you please ensure you are testing the latest mainline kernel (now
4.8-rc6)?
** Tags removed: cecn43ww
** Tags added: latest-bios-cecn43ww
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With kernel 4.8-rc5, rtl8821ae does not looses connection (at least
network manager does not display that), but the speed drops down to 0
really often and restores only after half a minute.
** Tags added: kernel-bug-exists-upstream kernel-bug-exists-
upstream-4.8-rc5
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Anton Polukhin, thank you for reporting this and helping make Ubuntu
better.
In order to allow additional upstream developers to examine the issue, at your
earliest convenience, could you please test the latest upstream kernel
available from
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