[SOLVED] Problem using uni wifi

seth · 2023-10-27 15:19:05

2.4 is not the end of the world, but obv 5.0 is better

Fwwi, that's a misunderstanding. 5GHz /can/ be better and typically is on close, unobstructed distances, but 2.4GHz has a longer range and more capacity to penetrate walls etc.
Also the signal vastly depends on the noise, ie. if everyone's using 5GHz and you're the only one on 2.4GHz, you'll typically have better a signal and possibly throughput.

How's the signal in the cafeteria and the library?

ZALMT · 2023-11-01 06:46:01

seth wrote:

2.4 is not the end of the world, but obv 5.0 is better
Fwwi, that's a misunderstanding. 5GHz /can/ be better and typically is on close, unobstructed distances, but 2.4GHz has a longer range and more capacity to penetrate walls etc.
Also the signal vastly depends on the noise, ie. if everyone's using 5GHz and you're the only one on 2.4GHz, you'll typically have better a signal and possibly throughput.
How's the signal in the cafeteria and the library?

Sorry, I haven't been to the library until now.

Anyway I ran

 iw dev wlan0 scan | less

while having the card that could only do 2.4Ghz and it returned this:

BSS 6c:d6:e3:00:04:e4(on wlan0)
        TSF: 2792837566753 usec (32d, 07:47:17)
        freq: 2437
        beacon interval: 100 TUs
        capability: ESS ShortSlotTime RadioMeasure (0x1401)
        signal: -44.00 dBm
        last seen: 2294 ms ago
        Information elements from Probe Response frame:
        SSID: UniSydney-Guest
        Supported rates: 12.0 18.0 24.0* 36.0 48.0 54.0*
        DS Parameter set: channel 6
        Country: AU     Environment: bogus
                Channels [1 - 1] @ 21 dBm
                Channels [2 - 10] @ 23 dBm
                Channels [11 - 11] @ 19 dBm
        Power constraint: 0 dB
        TPC report: TX power: 11 dBm
        ERP: Barker_Preamble_Mode
        BSS Load:
                 * station count: 0
                 * channel utilisation: 180/255
                 * available admission capacity: 23437 [*32us]
        RM enabled capabilities:
                Capabilities: 0x73 0xd0 0x00 0x00 0x0c
                        Link Measurement
                        Neighbor Report
                        Beacon Passive Measurement
                        Beacon Active Measurement
                        Beacon Table Measurement
                        LCI Measurement
                        Transmit Stream/Category Measurement
                        Triggered Transmit Stream/Category
                        FTM Range Report
                        Civic Location Measurement
                Nonoperating Channel Max Measurement Duration: 0
                Measurement Pilot Capability: 4
        HT capabilities:
                Capabilities: 0x9ad
                        RX LDPC
                        HT20
                        SM Power Save disabled
                        RX HT20 SGI
                        TX STBC
                        RX STBC 1-stream
                        Max AMSDU length: 7935 bytes
                        No DSSS/CCK HT40
                Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                Minimum RX AMPDU time spacing: No restriction (0x00)
                HT TX/RX MCS rate indexes supported: 0-31
        HT operation:
                 * primary channel: 6
                 * secondary channel offset: no secondary
                 * STA channel width: 20 MHz
                 * RIFS: 0
                 * HT protection: no
                 * non-GF present: 1
                 * OBSS non-GF present: 0
                 * dual beacon: 0
                 * dual CTS protection: 0
                 * STBC beacon: 0
                 * L-SIG TXOP Prot: 0
                 * PCO active: 0
                 * PCO phase: 0
        Extended capabilities:
                 * Extended Channel Switching
                 * Proxy ARP Service
                 * BSS Transition
                 * Operating Mode Notification
        HE capabilities:
                HE MAC Capabilities (0x01099a081040):
                        +HTC HE Supported
                        Dynamic BA Fragementation Level: 1
                        Minimum Payload size of 128 bytes: 1
                        BSR
                        OM Control
                        Maximum A-MPDU Length Exponent: 3
                        RX Control Frame to MultiBSS
                        A-MSDU in A-MPDU
                        OM Control UL MU Data Disable RX
                HE PHY Capabilities: (0x006048881f43811c010800):
                        LDPC Coding in Payload
                        HE SU PPDU with 1x HE-LTF and 0.8us GI
                        STBC Rx <= 80MHz
                        Full Bandwidth UL MU-MIMO
                        DCM Max Constellation Rx: 1
                        SU Beamformer
                        SU Beamformee
                        MU Beamformer
                        Beamformee STS <= 80Mhz: 7
                        Sounding Dimensions <= 80Mhz: 3
                        Ng = 16 SU Feedback
                        Codebook Size SU Feedback
                        PPE Threshold Present
                        HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
                        Max NC: 3
                        HE ER SU PPDU 4x HE-LTF 0.8us GI
                        RX 1024-QAM
                PPE Threshold 0xaa 0xff 0xaa 0xff 0x1b 0x1c 0xc7 0x71 0x1c 0xc7 0x71
        WMM:     * Parameter version 1
                 * u-APSD
                 * BE: CW 15-1023, AIFSN 3
                 * BK: CW 15-1023, AIFSN 7
                 * VI: CW 7-15, AIFSN 2, TXOP 3008 usec
                 * VO: CW 3-7, AIFSN 2, TXOP 1504 usec

The signal, if I understand correctly, is much stronger on 2.4Ghz, but still it wasn't connecting in my classroom

Last edited by ZALMT (2023-11-01 06:50:53)

seth · 2023-11-01 09:20:44

The above output is from the classroom?
The channel is more crowded but the signal much stronger - do you have a journal for that supposed connection failure?

ZALMT · 2023-11-01 09:22:14

The above output is from the library

I'll try to get the journal for that tmr

ZALMT · 2023-11-19 01:43:20

Sorry for the late reply, but I have been through some tests. After the test I won't be back at school until like February so... yeah. The places that I take this thing to have been alright regarding wifi, so probably when I got back I'll open up a new threat if the problem still persists.

Thank you so much

ZALMT · 2024-02-22 00:20:59

For anyone else who stumbled on this question, I ended up reinstalled Arch entirely, new physical drive and everything, during my trip in the holidays, I got back to school a month after and it kinda works? Definitely something wrong with my configs and/or services/packages. It should be noted that I used

archinstall

in the first install and I installed manually (following the wiki) the second time. Perhaps there was a bug in the script?

Anyway that should be beyond the scope of this question, marking it as sovled

Arch Linux

#26 2023-10-27 15:19:05

Re: [SOLVED] Problem using uni wifi

#27 2023-11-01 06:46:01

Re: [SOLVED] Problem using uni wifi

#28 2023-11-01 09:20:44

Re: [SOLVED] Problem using uni wifi

#29 2023-11-01 09:22:14

Re: [SOLVED] Problem using uni wifi

#30 2023-11-19 01:43:20

Re: [SOLVED] Problem using uni wifi

#31 2024-02-22 00:20:59

Re: [SOLVED] Problem using uni wifi

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