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I'm seeing a consistent packet loss problem with the rtl8188ee Realtek
wireless driver. Long sequences of pings to the access point IP show
25-30% packet loss. Downloads get 'stuck', pages don't load, it's
generally unusable.
I've tried the following kernels:
/boot/initrd.img-3.11.0-12-generic /boot/initrd.img-3.12.3-031203-generic
/boot/initrd.img-3.11.0-14-generic /boot/initrd.img-3.13.0-031300rc3-generic
all with the same result. Packet capture shows lots of dup ACKs, some
retransmits.
I suspected 802.11n might be the culprit, but I've disabled it at the
AP, and the driver seems to respect that judging by these log lines:
Dec 7 21:50:52 congo kernel: [13812.218008] rtl8188ee 0000:01:00.0 wlan0:
disabling HT as WMM/QoS is not supported by the
AP
Dec 7 21:50:52 congo kernel: [13812.218011] rtl8188ee 0000:01:00.0 wlan0:
disabling VHT as WMM/QoS is not supported by the
AP
Other than those lines there isn't anything noteworthy in syslog.
Very interested in getting this fixed, please let me know how I can help
debug.
$ lsb_release -rd
Description: Ubuntu 13.10
Release: 13.10
$ uname -a
Linux congo 3.13.0-031300rc3-generic #201312061335 SMP Fri Dec 6 18:37:23 UTC
2013 x86_64 x86_64 x86_64 GNU/Linux
$ sudo lshw -C network
*-network
description: Wireless interface
product: RTL8188EE Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlan0
version: 01
serial: 34:23:87:0d:23:85
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical
wireless
configuration: broadcast=yes driver=rtl8188ee
driverversion=3.13.0-031300rc3-generic firmware=N/A ip=192.168.1.68 latency=0
link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:18 ioport:5000(size=256) memory:b2600000-b2603fff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:09:00.0
logical name: eth0
version: 0c
serial: 9c:b6:54:c1:7d:36
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-2_0.0.1 02/06/13
latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:43 ioport:3000(size=256) memory:b2500000-b2500fff
memory:b2400000-b2403fff
** Affects: linux (Ubuntu)
Importance: Low
Status: Incomplete
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rtl8188ee wireless driver unusable: 25-30% packet loss. 13.10 Saucy
https://bugs.launchpad.net/bugs/1258870
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