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  1. #1
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    M Asef Yusriyadi's Avatar
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    [ASK] Wireless Mikrotik RB800 tidak stabil

    hi rekan-rekan semua,
    salam kenal, newbie mau bertanya nih. Di kantor saya menggunakan Mikrotik RB800 2 card 4 antena untuk keperluan wifi. di dalam Mikrotik tersebut hanya ada setingan untuk AP, sedangkan firewall,proxy,dhcp server ada di server yang berbeda. di Mikrotik tersebut terdapat setingan 3 bridge,3 vlan,dan 3 virtual ap. yang menjadi pertanyaan saya adalah :
    1. berapa sih maksimal user yang bisa terhubung ke wifi per card nya??
    2. kejadian di lapangan, saat user yg terhubung mencapai 20 user, koneksi masih stabil. tadi di saat masuk lagi sampai 25 user ke atas, mulai terjadi ketidakstabilan. user putus-nyambung koneksinya. kira-kira kenapa ya?

    Mohon bantuan dari suhu-suhu di sini. Terima kasih
    Last edited by M Asef Yusriyadi; 05-03-2013 at 09:33. Reason: lupa format title

  2. #2
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    Noeg Waskito's Avatar
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    pake ROS versi berapa? firmware versi berapa?minipci seri apa?

  3. #3
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    OSnya versi 5.24, Firmwarenya versi 2.29. kalo minipcinya liat di mana ya kalo di WinBox, soalnya wirelessnya sudah di langit-langit Click here to enlarge?

  4. #4
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    2card 4 antenna ya? MIMO-kah? coba copas hasil
    /int wi pr detail advanced

  5. #5
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    Iya gan, 2 Card 4 Antena. Kurang tau MIMO pa bukan. Click here to enlarge dan baru saja saya upgrade firmwarenya jadi 3.02.
    Ini gan Hasil nya
    [admin@MikroTik] > /int wi pr detail advanced
    Flags: X - disabled, R - running
    0 name="wlan1" mtu=1500 mac-address=00:0C:42:6C:8E:2E arp=enabled disable-running-check=no interface-type=Atheros 11N radio-name="000C426C8E2E"
    mode=ap-bridge ssid="" area="" frequency-mode=manual-txpower country=indonesia antenna-gain=0 frequency=2457 band=2ghz-b/g/n channel-width=20mhz
    scan-list=default wireless-protocol=unspecified rate-set=default supported-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps
    supported-rates-a/g=6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,5 4Mbps basic-rates-b=1Mbps basic-rates-a/g=6Mbps max-station-count=2007
    distance=dynamic tx-power-mode=default noise-floor-threshold=default nv2-noise-floor-offset=default periodic-calibration=default
    periodic-calibration-interval=60 dfs-mode=none wds-mode=disabled wds-default-bridge=none wds-default-cost=100 wds-cost-range=50-150
    wds-ignore-ssid=no update-stats-interval=disabled bridge-mode=enabled default-authentication=yes default-forwarding=yes default-ap-tx-limit=0
    default-client-tx-limit=0 proprietary-extensions=post-2.9.25 wmm-support=disabled hide-ssid=no security-profile=default disconnect-timeout=3s
    on-fail-retry-time=100ms preamble-mode=both compression=no allow-sharedkey=no station-bridge-clone-mac=00:00:00:00:00:00 ht-ampdu-priorities=0
    ht-guard-interval=any ht-supported-mcs=mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7,mcs-8,mcs-9,mcs-10,mcs-11,mcs-12,mcs-13,mcs-14,mcs-15,mcs-16,
    mcs-17,mcs-18,mcs-19,mcs-20,mcs-21,mcs-22,mcs-23
    ht-basic-mcs=mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7 ht-txchains=0 ht-rxchains=0 ht-amsdu-limit=8192 ht-amsdu-threshold=8192
    tdma-period-size=2 nv2-queue-count=2 nv2-qos=default nv2-cell-radius=30 nv2-security=disabled nv2-preshared-key="" hw-retries=7 frame-lifetime=0
    adaptive-noise-immunity=none hw-fragmentation-threshold=disabled hw-protection-mode=none hw-protection-threshold=0 frequency-offset=0
    rate-selection=advanced multicast-helper=default

    1 name="wlan2" mtu=1500 mac-address=00:0C:42:6C:8E:20 arp=enabled disable-running-check=no interface-type=Atheros 11N radio-name="000C426C8E20"
    mode=ap-bridge ssid="" area="" frequency-mode=manual-txpower country=no_country_set antenna-gain=0 frequency=2417 band=2ghz-b/g channel-width=20mhz
    scan-list=default wireless-protocol=unspecified rate-set=default supported-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps
    supported-rates-a/g=6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,5 4Mbps basic-rates-b=1Mbps basic-rates-a/g=6Mbps max-station-count=2007
    distance=dynamic tx-power-mode=default noise-floor-threshold=default nv2-noise-floor-offset=default periodic-calibration=default
    periodic-calibration-interval=60 dfs-mode=none wds-mode=disabled wds-default-bridge=none wds-default-cost=100 wds-cost-range=50-150
    wds-ignore-ssid=no update-stats-interval=disabled bridge-mode=enabled default-authentication=yes default-forwarding=yes default-ap-tx-limit=0
    default-client-tx-limit=0 proprietary-extensions=post-2.9.25 wmm-support=disabled hide-ssid=no security-profile=default disconnect-timeout=3s
    on-fail-retry-time=100ms preamble-mode=both compression=no allow-sharedkey=no station-bridge-clone-mac=00:00:00:00:00:00 ht-ampdu-priorities=0
    ht-guard-interval=any ht-supported-mcs=mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7,mcs-8,mcs-9,mcs-10,mcs-11,mcs-12,mcs-13,mcs-14,mcs-15,mcs-16,
    mcs-17,mcs-18,mcs-19,mcs-20,mcs-21,mcs-22,mcs-23
    ht-basic-mcs=mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7 ht-txchains=0 ht-rxchains=0 ht-amsdu-limit=8192 ht-amsdu-threshold=8192
    tdma-period-size=2 nv2-queue-count=2 nv2-qos=default nv2-cell-radius=30 nv2-security=disabled nv2-preshared-key="" hw-retries=7 frame-lifetime=0
    adaptive-noise-immunity=none hw-fragmentation-threshold=disabled hw-protection-mode=none hw-protection-threshold=0 frequency-offset=0
    rate-selection=advanced multicast-helper=default

    2 name="Wifi-OPS" mtu=1500 mac-address=02:0C:42:6C:8E:30 arp=enabled disable-running-check=no interface-type=virtual-AP master-interface=wlan1
    ssid="LinkIT360-OPS" area="" max-station-count=2007 wds-mode=dynamic wds-default-bridge=bridge-OPS wds-default-cost=0 wds-cost-range=0
    wds-ignore-ssid=no update-stats-interval=disabled bridge-mode=enabled default-authentication=yes default-forwarding=yes default-ap-tx-limit=0
    default-client-tx-limit=0 proprietary-extensions=post-2.9.25 wmm-support=disabled hide-ssid=no security-profile=OPS multicast-helper=default

    3 R name="Wifi-RND" mtu=1500 mac-address=02:0C:42:6C:8E:2F arp=enabled disable-running-check=no interface-type=virtual-AP master-interface=wlan2
    ssid="LinkIT360-RND" area="" max-station-count=2007 wds-mode=dynamic wds-default-bridge=bridge-RND wds-default-cost=0 wds-cost-range=0
    wds-ignore-ssid=no update-stats-interval=disabled bridge-mode=enabled default-authentication=yes default-forwarding=yes default-ap-tx-limit=0
    default-client-tx-limit=0 proprietary-extensions=post-2.9.25 wmm-support=disabled hide-ssid=no security-profile=DEV multicast-helper=default
    Mohon petunjuknya suhu ....

  6. #6
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    coba ht-txchains & ht-rxchains dicentang semua,ntu di menu wireless-HT
    4 antena ntu pake antena apa Gan?

  7. #7
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    sudah saya centang semua HT chain 0 dan chain 1 di 2 wlan. Antenanya pake yg "9 dBi N-Type Male Omni Antenna" yg bisa 2.4GHz dan 5GHz modelnya seperti hanya saja lingkaran cincinnya hanya 2 ga 3 kayak di situs itu.

  8. #8
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    masih masalah?
    pake WDS juga ya?
    udah coba aktifin adaptive-noise-immunity? udah coba ganti channel freq?

  9. #9
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    saat ini belum terlalu terlihat, karna user yg masuk masih di bawah 20 user. WDS di wlan1 dan wlan2 di disabled, sedangkan di Wifi APnya di set dynamic. adaptive-noise-immunity statusnya none, kalo mau di aktifin pilih yang mana ya? ap and client mode atau client mode saja? channel sudah di ganti-ganti.

  10. #10
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    pake mode ap and client
    kalau WDSnya blum dipake,mending di-disable dulu aja,kalau kepaksa make,coba mode static aja

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  12. #11
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    ok gan, saya coba dulu caranya dan pantau kondisinya... Click here to enlarge Click here to enlarge

 

 

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