RTL8812AU lag spikes

English Network/Internet
1

Hello,

My wireless adapter is a D-Link DWA 182, usb, with a Realtek RTL8812AU chipset. After installing the driver from here “https://github.com/gnab/rtl8812au” (since the one from Realtek and D-Link sites would not for for kernels above 3.9) the adapter was up and running. Playing CS:GO i found some massive lag spikes (which do not happen if i move the usb adapter to a windows pc connected to the same network). Pinging both google and my router, i found out that every 10-15 secconds i have a delay of over 2000 Ms to the router. Switching the network from Network Manager to Wicked solves the problem a bit, instead of 2000 Ms i get now between 150-200Ms spikes to the router. Packet loss is down to 0% on all pings. I played a bit with the MTU but it didn’t change anything. Any ideeas how can i trace what my wireless adapter is doing every 10-15 secconds to identify the problem ? IPV 6 is turned off on both the router and card. Below some info :


linux-oiv7:/home/nradu/Downloads/rtl8812au-master # iwconfig
wlan0     IEEE 802.11AC  ESSID:"Huawei"  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency:5.24 GHz  Access Point: 20:08:ED:E2:F4:44   
          Bit Rate:867 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:****-****-****-****-****-****-****-****   Security mode:open
          Power Management:off
          Link Quality=100/100  Signal level=100/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

The security mode is not “Open” (it must be a mistake), it’s actually WPA2-PSK

Wanted to check my card capabilities but something strange happened :


linux-oiv7:/home/nradu/Downloads/rtl8812au-master # iw wlan0 info
command failed: No such device (-19)

On iw list command it only shows my other adapters (have an old PCI-E Asus N adapter)


linux-oiv7:/home/nradu/Downloads/rtl8812au-master # iwconfig
wlan0     IEEE 802.11AC  ESSID:"Huawei"  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency:5.24 GHz  Access Point: 20:08:ED:E2:F4:44   
          Bit Rate:867 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:****-****-****-****-****-****-****-****   Security mode:open
          Power Management:off
          Link Quality=100/100  Signal level=100/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

wlp2s0    IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Encryption key:off
          Power Management:off
          
eno1      no wireless extensions.

lo        no wireless extensions.

Opensuse 13.2 x64, KDE

2

things get a bit weirder (or i’m not doing something right) :


linux-oiv7:/home/nradu/Downloads/rtl8812au-master # lshw -C Network  
  *-network DISABLED      
       description: Ethernet interface
       product: 82579V Gigabit Network Connection
       vendor: Intel Corporation
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: eno1
       version: 05
       serial: 14:da:e9:43:1b:a7
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.4.2-NAPI firmware=0.13-4 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:60 memory:f7c00000-f7c1ffff memory:f7c29000-f7c29fff ioport:f080(size=32)
  *-network DISABLED
       description: Wireless interface
       product: RTL8192CE PCIe Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlp2s0
       version: 01
       serial: 50:46:5d:af:81:c2
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8192ce driverversion=3.16.7-21-desktop firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
       resources: irq:16 ioport:d000(size=256) memory:f7b00000-f7b03fff
  *-usb
       description: Wireless interface
       product: D-Link Wireless Adapter
       vendor: Realtek
       physical id: 2
       bus info: usb@5:2
       logical name: wlan0
       version: 0.00
       serial: 123456
       capabilities: usb-2.00 ethernet physical wireless
       configuration: broadcast=yes driver=rtl8812au ip=192.168.8.100 maxpower=500mA multicast=yes speed=480Mbit/s wireless=IEEE 802.11AC
linux-oiv7:/home/nradu/Downloads/rtl8812au-master # modinfo rtl8812au
modinfo: ERROR: Module rtl8812au not found.

pinging the router :

— 192.168.8.1 ping statistics —
2145 packets transmitted, 2126 received, 0% packet loss, time 2146882ms
rtt min/avg/max/mdev = 0.980/41.756/11078.767/496.256 ms, pipe 12

3

What Distribution are you using, what Desktop?

Show us as root:

lspci --nnk | grep -iA3 net

lsusb
4

Opensuse 13.2, x64, KDE. Wrote it in first post :).


linux-oiv7:/home/nradu/Downloads/rtl8812au-master # lsusb
Bus 002 Device 004: ID 1e7d:2e22 ROCCAT 
Bus 002 Device 003: ID 1e7d:3138 ROCCAT 
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 002: ID 2001:3315 D-Link Corp. 
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub



linux-oiv7:/home/nradu/Downloads/rtl8812au-master # lspci -nnk | grep -iA3 net
00:19.0 Ethernet controller [0200]: Intel Corporation 82579V Gigabit Network Connection [8086:1503] (rev 05)
        Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard [1043:849c]
        Kernel driver in use: e1000e
        Kernel modules: e1000e
--
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8192CE PCIe Wireless Network Adapter [10ec:8178] (rev 01)
        Subsystem: ASUSTeK Computer Inc. Device [1043:84b6]
        Kernel driver in use: rtl8192ce
        Kernel modules: rtl8192ce

Strangely enough, my adapter is not shown even here.

5

That is at the top of the page (above the title), where it says: openSUSE 13.2 RTL8812 … And it is also posted at the end of his first post:

Opensuse 13.2 x64, KDE

6 

PING 192.168.8.1 (192.168.8.1) 56(84) bytes of data.
64 bytes from 192.168.8.1: icmp_seq=1 ttl=64 time=55.7 ms
64 bytes from 192.168.8.1: icmp_seq=2 ttl=64 time=6.46 ms
64 bytes from 192.168.8.1: icmp_seq=3 ttl=64 time=11.5 ms
64 bytes from 192.168.8.1: icmp_seq=4 ttl=64 time=9.91 ms
64 bytes from 192.168.8.1: icmp_seq=5 ttl=64 time=7.89 ms
64 bytes from 192.168.8.1: icmp_seq=6 ttl=64 time=6.01 ms
64 bytes from 192.168.8.1: icmp_seq=7 ttl=64 time=6.66 ms
64 bytes from 192.168.8.1: icmp_seq=8 ttl=64 time=6.62 ms
64 bytes from 192.168.8.1: icmp_seq=9 ttl=64 time=12.7 ms
64 bytes from 192.168.8.1: icmp_seq=10 ttl=64 time=10.7 ms
64 bytes from 192.168.8.1: icmp_seq=11 ttl=64 time=8.89 ms
64 bytes from 192.168.8.1: icmp_seq=12 ttl=64 time=3400 ms
64 bytes from 192.168.8.1: icmp_seq=13 ttl=64 time=2400 ms
64 bytes from 192.168.8.1: icmp_seq=14 ttl=64 time=1400 ms
64 bytes from 192.168.8.1: icmp_seq=15 ttl=64 time=400 ms
64 bytes from 192.168.8.1: icmp_seq=16 ttl=64 time=1.99 ms

There is no other device connected to the network. There is no traffic at the moment. Placing the usb adapter in my wife’s laptop (windows) all pings are at 4-5 ms. It might be the driver, but then again, switching from network manager to wicked (as mentioned) improves the situation (but does not solve it).

7

That is at the top of the page (above the title), where it says: openSUSE 13.2 RTL8812 … And it is also posted at the end of his first post:

Sorry, not seen

Strangely enough, my adapter is not shown even here.

Here it is.

Bus 005 Device 002: ID 2001:3315 D-Link Corp.

https://wikidevi.com/wiki/D-Link_DWA-182_rev_C1

And here:

Cd to the directory where your source is and compile

cd /usr/src/rtl8812AU_8821AU_linux
sudo make clean
sudo make
sudo make install
sudo modprobe -a 8812au

8

M8, the driver is installed, also specified this in the first post :). My problem is with the lag spikes every 10 seconds, not driver installation.