Sunday, June 3, 2018

networking - Wireless disconnect issues Ubuntu 16.04 with RTL8821ae

** UPDATE 12/03/2016: I still have not solved this issue. Is anyone able to help? ***



I've been having trouble with my Wifi ever since I installed Ubuntu 16.04 two months ago. There are several posts similar to this one on the forums, however I've not found any that work for me. Here are some similar questions which did not help me:



How do I get a Realtek RTL8723BE wireless card to work?
wifi connection keeps dropping in Ubuntu 15.10 - RTL8821AE
http://ubuntuforums.org/showthread.php?t=2245164&page=2
http://ubuntuforums.org/showthread.php?t=2245164



Let's get into it.




The problem:



I can load about 1-2 webpages before my wifi disconnects. When my wireless disconnects, the Network Manager icon does not change its appearance, i.e. showing that I'm still connected. It will not reconnect on its own. I then remove/reinsert my driver using:



sudo modprobe rtl8821ae -r
sudo modprobe rtl8821ae


I never have internet that lasts long enough to load an entire YouTube video or upload a 3.5 MB file to Dropbox. Yikes.




Details:



sudo lshw -C network

*-network
description: Wireless interface
product: RTL8821AE 802.11ac PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0

logical name: wlp1s0
version: 00
serial: b0:c0:90:1b:b8:bd
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8821ae driverversion=4.4.0-28-generic firmware=N/A ip=192.168.0.7 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:233 ioport:e000(size=256) memory:ff600000-ff603fff

*-network

description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: enp2s0
version: 10
serial: 2c:56:dc:9d:2c:64
size: 10Mbit/s
capacity: 1Gbit/s

width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168g-3_0.0.1 04/23/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:225 ioport:d000(size=256) memory:ff504000-ff504fff memory:ff500000-ff503fff




lsmod | grep rtl


rtl8821ae 225280 0
btcoexist 53248 1 rtl8821ae
rtl_pci 28672 1 rtl8821ae
rtlwifi 77824 2 rtl_pci,rtl8821ae
mac80211 737280 3 rtl_pci,rtlwifi,rtl8821ae
cfg80211 565248 2 mac80211,rtlwifi
btrtl 16384 1 btusb
bluetooth 520192 9 bnep,btbcm,btrtl,btusb,btintel



I am happy to provide anything that is useful for diagnosing my problem. Thanks guys!

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