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bariswheel's avatar
bariswheel
Aspirant
Sep 18, 2019

Orbi rbk50 90% performance drop over 2-3 days, memory leak?

I found another post, it seems there are hundreds of people reporting symptoms where their 300Mbps connection drops to 30Mbps. Completely unacceptable known issue.    I updated the firmware but I c...
SW_'s avatar
SW_
Prodigy
Dec 09, 2019

If you can reproduce this problem, please try this and let us know:

 

  1. Rename the existing main SSID XXX to new SSID YYY
  2. Turn on Guess Network and set its SSID to the old SSID XXX with the same password
  3. Tick  Allow guests to see each other and access my local network
  4. Start migrating each (ac/n) client to new SSID YYY
  5. If the slowdown problem doesn't show up, migrate the next client...
  6. Eventually, you should find the culprit that causes everyone to slow down
SW_'s avatar
SW_
Prodigy
Dec 09, 2019
SW_ wrote:

If you can reproduce this problem, please try this and let us know:

 

  1. Rename the existing main SSID XXX to new SSID YYY
  2. Turn on Guess Network and set its SSID to the old SSID XXX with the same password
  3. Tick  Allow guests to see each other and access my local network
  4. Start migrating each (ac/n) client to new SSID YYY
  5. If the slowdown problem doesn't show up, migrate the next client...
  6. Eventually, you should find the culprit that causes everyone to slow down

You can narrow this down via telnet method.  Telnet into Orbi and run this cmd:

  • wlanconfig ath1 list
This is my Guest Network interface where all my IoT devices are connected:

root@RBR50:/# wlanconfig ath11 list

ADDR               AID CHAN TXRATE RXRATE RSSI MINRSSI MAXRSSI IDLE  TXSEQ  RXSEQ  CAPS        ACAPS     ERP    STATE MAXRATE(DOT11) HTCAPS ASSOCTIME    IEs   MODE                   PSMODE

18:b4:30:bf:xx:xx    1   48  19M     39M   20      17      25    0      0   65535    EP         0          b              0               Q 23:22:32     RSN WME IEEE80211_MODE_11NA_HT20   1

18:b4:30:bf:xx:xx    3   48  72M     52M   20      17      25    0      0   65535    EP         0          b              0               Q 23:22:30     RSN WME IEEE80211_MODE_11NA_HT20   1

64:16:66:72:xx:xx    2   48 650M    234M   23       3      28    0      0   65535    EP         0          b              0            AWPS 21:16:21     RSN WME IEEE80211_MODE_11AC_VHT80   0

e4:f0:42:26:xx:xx    4   48 351M    351M   28       0      42    0      0   65535   EPs         0          b              0             WPS 08:09:39     RSN WME IEEE80211_MODE_11AC_VHT80   0


This is my main Orbi interface, which one of the client is connected at 300Mbps.

root@RBR50:/# wlanconfig ath1 list

ADDR               AID CHAN TXRATE RXRATE RSSI MINRSSI MAXRSSI IDLE  TXSEQ  RXSEQ  CAPS        ACAPS     ERP    STATE MAXRATE(DOT11) HTCAPS ASSOCTIME    IEs   MODE                   PSMODE

38:f7:3d:3c:xx:xx    3   48 866M    866M   39      29      48    0      0   65535    EP         0          b              0            AWPS 23:18:25     RSN WME IEEE80211_MODE_11AC_VHT80   0

f0:79:60:de:xx:xx    1   48 866M    585M   48      36      63    1      0   65535    EP         0          b              0            AWPS 04:24:21     RSN WME IEEE80211_MODE_11AC_VHT80   1

00:24:36:b5:xx:xx    2   48 300M    243M   42      40      43    2      0   65535    EP         0          b              0            WPSM 00:00:14     RSN WME IEEE80211_MODE_11NA_HT40   1
  • dferreira1's avatar
    dferreira1
    Aspirant
    Dec 18, 2019

    Hello again guys,

     

    SW_ 

     

    After few days testing, I moved all the other clients to a guest network and left only MBP on main network.

    I could see after 4 days the speed dropping again as I list below:

     

    AID CHAN TXRATE RXRATE RSSI MINRSSI MAXRSSI IDLE TXSEQ RXSEQ CAPS ACAPS ERP STATE MAXRATE(DOT11) HTCAPS ASSOCTIME IEs MODE PSMODE
     1 44 390M 234M 42 39 48 0 0 65535 EP 0 b 0 AWPS 18:28:38 RSN WME IEEE80211_MODE_11AC_VHT80 0

     

    Other thing I could see is that is happening after a great volume of data is flowing. I'm a developer, so I had to get a 1GB of data from SQL Server (connected via LAN) and in the middle of copy the speed dropped.

     

    The same thing occurred when I transfered last Ubuntu release by tor****.

    So, I'm convinced that problem is not on other devices and it's in the router firmware or something else.

     

    PS: The atached screenshot is from the router when the speed dropped. Remember, mine is a RBR40.