As per question I just bought `Qualcomm Atheros AR93xx Wireless Network Adapter`, specifically [TP-LINK TL-WDN4800 N900](https://www.amazon.co.uk/gp/product/B007GMPZ0A/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1) - which should reach *450* Mbps.

I'm running on kernel `Linux scv 4.10.0-40-generic #44~16.04.1-Ubuntu SMP Thu Nov 9 15:37:44 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux` and when I try to find the available bitrates I get:

```
ema@scv:~$ sudo iwlist wlp2s0 bitrate
wlp2s0    unknown bit-rate information.
          Current Bit Rate=54 Mb/s

```

I tried to manually set it to *300* Mbps via `sudo iwconfig wlp2s0 rate 300M`, but it really doesn't sort any desired effect.

I am connecting to a [Netgear N600](https://www.amazon.co.uk/NETGEAR-DGND3700-100UKS-Wireless-Router-Connections/dp/B004TR5HF8/ref=pd_lpo_sbs_107_t_0?_encoding=UTF8&psc=1&refRID=B3N5BBAF0B2XCRX5K8ES) and the mode of the 5GHz network is set to 300Mbps; this device is ~3m away from my pc and the signal is *good* I guess (only 3 5GHz access points on channel 36):

```
wlp2s0    IEEE 802.11  ESSID:"M4yb3_n0tX"  
          Mode:Managed  Frequency:5.18 GHz  Access Point: 84:1B:5E:36:9C:22   
          Bit Rate=54 Mb/s   Tx-Power=18 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=57/70  Signal level=-53 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:1  Invalid misc:133   Missed beacon:0

```

My `sudo lspci -vv -s 02:00.0` produces (apologies for long output):

```
02:00.0 Network controller: Qualcomm Atheros AR93xx Wireless Network Adapter (rev 01)
    Subsystem: Qualcomm Atheros AR93xx Wireless Network Adapter
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0, Cache Line Size: 32 bytes
    Interrupt: pin A routed to IRQ 16
    Region 0: Memory at f7b00000 (64-bit, non-prefetchable) [size=128K]
    Expansion ROM at f7b20000 [disabled] [size=64K]
    Capabilities: [40] Power Management version 3
        Flags: PMEClk- DSI- D1+ D2- AuxCurrent=375mA PME(D0+,D1+,D2-,D3hot+,D3cold-)
        Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
        Address: 0000000000000000  Data: 0000
        Masking: 00000000  Pending: 00000000
    Capabilities: [70] Express (v2) Endpoint, MSI 00
        DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <1us, L1 <8us
            ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
        DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
            RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
            MaxPayload 128 bytes, MaxReadReq 512 bytes
        DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
        LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <2us, L1 <64us
            ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
        LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
            ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
        LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
        DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR-, OBFF Not Supported
        DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
        LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
             Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
             Compliance De-emphasis: -6dB
        LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
             EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
    Capabilities: [100 v1] Advanced Error Reporting
        UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
        UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
        UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
        CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
        CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
        AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
    Capabilities: [140 v1] Virtual Channel
        Caps:   LPEVC=0 RefClk=100ns PATEntryBits=1
        Arb:    Fixed- WRR32- WRR64- WRR128-
        Ctrl:   ArbSelect=Fixed
        Status: InProgress-
        VC0:    Caps:   PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
            Arb:    Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
            Ctrl:   Enable+ ID=0 ArbSelect=Fixed TC/VC=01
            Status: NegoPending- InProgress-
    Capabilities: [300 v1] Device Serial Number 00-00-00-00-00-00-00-00
    Kernel driver in use: ath9k
    Kernel modules: ath9k

```

What should I do next? I'd like to achieve *300* Mbps, do you think it'll be possible?

I have tested by transferring files to a pc linked on the same router via Ethernet (1000 *Mbps*), and the best upload speed (Wireless to Ethernet) is around *24* Mbps, whilst the best download speed (Ethernet to Wireless) is around *32* Mbps (it's worth noting that when I connect both PCs Ethernet to Ethernet I reach *1000* Mbps without any sweat).
Is the router which needs changing?

Any suggestion is welcome!