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[ubuntu] TL-WN851ND : no 802.11n available
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wwrandazzo
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PostPosted: Wed May 13, 2020 3:22 pm    Post subject: Re: TL-WN851ND : no 802.11n available Reply with quote

Hi Tom,

Thanks for sharing this tip for a better perfomance. I know its been a long time :roll: .... but i have one newbie question: How do you set up and mount the TL-WN851ND wifi adapter on your computer?

Im trying to do it in my ubuntu with no luck.

thanks in advance.


Tom_ wrote:
Hello,

I've got a TL-WN851ND wifi adapter in my computer. I just found out that this adapter only sees 2.4 ghz frequencies. That would explain why it has been so slow ...

The adapter specs are : https://www.tp-link.com/en/products/details/TL-WN851ND.html#specifications

My AP runs at 2.4 and 5 ghz.

Code:
thomas@gentoo ~ % lspci -vvnn | grep Network -A7
06:01.0 Network controller [0280]: Qualcomm Atheros AR9227 Wireless Network Adapter [168c:002d] (rev 01)
       Subsystem: Qualcomm Atheros AR9227 Wireless Network Adapter [168c:0300]
       Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
       Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
       Latency: 168, Cache Line Size: 4 bytes
       Interrupt: pin A routed to IRQ 16
       Region 0: Memory at faff0000 (32-bit, non-prefetchable) [size=64K]
       Capabilities: <access denied>
       Kernel driver in use: ath9k



Code:
thomas@gentoo ~ % iwlist wlp6s1 frequency
wlp6s1    13 channels in total; available frequencies :
         Channel 01 : 2.412 GHz
         Channel 02 : 2.417 GHz
         Channel 03 : 2.422 GHz
         Channel 04 : 2.427 GHz
         Channel 05 : 2.432 GHz
         Channel 06 : 2.437 GHz
         Channel 07 : 2.442 GHz
         Channel 08 : 2.447 GHz
         Channel 09 : 2.452 GHz
         Channel 10 : 2.457 GHz
         Channel 11 : 2.462 GHz
         Channel 12 : 2.467 GHz
         Channel 13 : 2.472 GHz
         Current Frequency:2.462 GHz (Channel 11)


Code:
thomas@gentoo ~ % iwconfig
wlp6s1    IEEE 802.11  ESSID:"CXNK0041D527" 
          Mode:Managed  Frequency:2.462 GHz  Access Point: CC:BE:59:39:EF:97   
          Bit Rate=57.8 Mb/s   Tx-Power=19 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=42/70  Signal level=-68 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:76   Missed beacon:0


Code:
thomas@gentoo linux % grep CFG80211 /usr/src/linux/.config
CONFIG_CFG80211=m
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_CERTIFICATION_ONUS is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
CONFIG_CFG80211_WEXT=y


Code:
thomas@gentoo linux % grep MINSTREL /usr/src/linux/.config
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
# CONFIG_MAC80211_RC_MINSTREL_VHT is not set
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y


Code:
thomas@gentoo linux % grep ATH9 /usr/src/linux/.config     
CONFIG_ATH9K_HW=m
CONFIG_ATH9K_COMMON=m
CONFIG_ATH9K_BTCOEX_SUPPORT=y
CONFIG_ATH9K=m
CONFIG_ATH9K_PCI=y
# CONFIG_ATH9K_AHB is not set
# CONFIG_ATH9K_DEBUGFS is not set
# CONFIG_ATH9K_DYNACK is not set
# CONFIG_ATH9K_WOW is not set
# CONFIG_ATH9K_CHANNEL_CONTEXT is not set
CONFIG_ATH9K_PCOEM=y
# CONFIG_ATH9K_HTC is not set
# CONFIG_ATH9K_HWRNG is not set


Do you know why i'm not able to have 802.11n?

Thank you

Thomas
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xaviermiller
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Joined: 23 Jul 2004
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PostPosted: Wed May 13, 2020 7:36 pm    Post subject: Reply with quote

Moved from Networking & Security to Unsupported Software.

Just to note, it was split from "TL-WN851ND : no 802.11n available". -- desultory
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Banana
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PostPosted: Thu May 14, 2020 7:27 am    Post subject: Reply with quote

Hello wwrandazzo.

Are you aware this is not a ubuntu forum? This means not that nobody can help you, but a dedicated ubuntu forum should help you better.
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wwrandazzo
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PostPosted: Thu May 14, 2020 7:10 pm    Post subject: Reply with quote

Hi Banana,

Sorry I saw that this site is dedicated to Gentoo distro but I tough that all unix OS are covered in hw stuff :? .

Thanks for repying banana.



Banana wrote:
Hello wwrandazzo.

Are you aware this is not a ubuntu forum? This means not that nobody can help you, but a dedicated ubuntu forum should help you better.
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Banana
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PostPosted: Sat May 16, 2020 1:00 pm    Post subject: Reply with quote

We do try to answer all kind of questions and we do not deny any questions about other linux distros. You are free to do it here.
What I wanted to say that you will have more luck finding an answer in a dedicated forum for the distro you are using.
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