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#1 2015-04-18 23:32:26

Xcaliber
Member
Registered: 2015-04-18
Posts: 1

Problems with Netgear A6100 wifi adapter

Hi,
I'm having some issues with my new wifi adapter. Using https://aur.archlinux.org/packages/rtl8812au-git-dkms I get it to work, but when I play games e.g UrT and WoW my ping goes up by several hundred ms and I get constant connection interrupts.
Using cabled eth everything works fine.

lsusb -v

Bus 001 Device 002: ID 0846:9052 NetGear, Inc. A6100 AC600 DB Wireless Adapter [Realtek RTL8811AU]
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.10
  bDeviceClass            0 
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0846 NetGear, Inc.
  idProduct          0x9052 A6100 AC600 DB Wireless Adapter [Realtek RTL8811AU]
  bcdDevice            2.00
  iManufacturer           1 
  iProduct                2 
  iSerial                 3 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           60
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower              500mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           6
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              2 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x84  EP 4 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x05  EP 5 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x06  EP 6 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x87  EP 7 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               3
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x08  EP 8 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x09  EP 9 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0

iwconfig

wlan0     IEEE 802.11an  ESSID:"BlackVan_5g"  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency:5.24 GHz  Access Point: BC:EE:7B:92:FE:94   
          Bit Rate:150 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          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

dmesg | tail -n50

[ 1232.074090] RTL871X: rtw_set_ps_mode: Leave 802.11 power save
[ 1232.074096] RTL871X: rtl8812_set_FwPwrMode_cmd: Mode=0 SmartPS=2 UAPSD=0
[ 1238.090704] RTL871X: rtw_set_ps_mode: Enter 802.11 power save
[ 1238.090711] RTL871X: rtl8812_set_FwPwrMode_cmd: Mode=1 SmartPS=2 UAPSD=0
[ 1258.146087] RTL871X: rtw_set_ps_mode: Leave 802.11 power save
[ 1258.146093] RTL871X: rtl8812_set_FwPwrMode_cmd: Mode=0 SmartPS=2 UAPSD=0
[ 1272.184870] RTL871X: rtw_set_ps_mode: Enter 802.11 power save
[ 1272.184876] RTL871X: rtl8812_set_FwPwrMode_cmd: Mode=1 SmartPS=2 UAPSD=0
[ 1272.914405] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 1272.914411] ata2.00: failed command: SMART
[ 1272.914414] ata2.00: cmd b0/d0:01:00:4f:c2/00:00:00:00:00/00 tag 30 pio 512 in
                        res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 1272.914416] ata2.00: status: { DRDY }
[ 1272.914419] ata2: hard resetting link
[ 1274.190413] RTL871X: rtw_set_ps_mode: Leave 802.11 power save
[ 1274.190418] RTL871X: rtl8812_set_FwPwrMode_cmd: Mode=0 SmartPS=2 UAPSD=0
[ 1278.251398] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 1278.308759] ata2.00: configured for UDMA/133
[ 1278.308780] ata2: EH complete
[ 1285.907112] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 1285.907117] ata2.00: failed command: SMART
[ 1285.907121] ata2.00: cmd b0/da:00:00:4f:c2/00:00:00:00:00/00 tag 0
                        res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 1285.907123] ata2.00: status: { DRDY }
[ 1285.907126] ata2: hard resetting link
[ 1291.437332] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 1291.438786] ata2.00: configured for UDMA/133
[ 1291.438807] ata2: EH complete
[ 1296.361547] RTL871X: Drop duplicate management frame with seq_num = 2299.
[ 1296.361557] RTL871X: Drop duplicate management frame with seq_num = 2299.
[ 1298.458797] RTL871X: OnAction_back
[ 1298.458805] RTL871X: OnAction_back, action=2
[ 1298.458807] RTL871X: OnAction_back(): DELBA: 0(0)
[ 1298.458810] RTL871X: OnAction_back
[ 1298.458812] RTL871X: OnAction_back, action=0
[ 1298.458813] RTL871X: issue_action_BA, category=3, action=1, status=0
[ 1298.458820] RTL871X: OnAction_back
[ 1298.458821] RTL871X: OnAction_back, action=0
[ 1298.458822] RTL871X: issue_action_BA, category=3, action=1, status=0
[ 1298.510261] RTL871X: survey done event(a)
[ 1418.391562] RTL871X: OnAction_back
[ 1418.391573] RTL871X: OnAction_back, action=2
[ 1418.391575] RTL871X: OnAction_back(): DELBA: 0(0)
[ 1418.391578] RTL871X: OnAction_back
[ 1418.391579] RTL871X: OnAction_back, action=0
[ 1418.391581] RTL871X: issue_action_BA, category=3, action=1, status=0
[ 1418.391588] RTL871X: OnAction_back
[ 1418.391589] RTL871X: OnAction_back, action=0
[ 1418.391590] RTL871X: issue_action_BA, category=3, action=1, status=0
[ 1418.442974] RTL871X: survey done event(9)

Edit:
It seems like it has something to do with power saving. I created /etc/modprobe.d/8812au and put "options 8812au rtw_power_mgnt=0 rtw_enusbss=0" in it, but it still goes into power saving.

Last edited by Xcaliber (2015-04-19 02:01:47)

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