RB532 with 21 clients ( high latency problem)

RouterOS Wireless Networking
1

hello , im a new member to the forum , i hope someone can help me with my problem .
i have an RB532 running on AP bridge mode with an R52 card , operating on 5Ghz-10Mhz

0 R name=“wlan1” mtu=1500 mac-address=00:0C:42:1F:34:6D arp=enabled
interface-type=Atheros AR5413 mode=ap-bridge ssid=“naher”
frequency=5200 band=5ghz-10mhz scan-list=default antenna-mode=ant-a
wds-mode=dynamic wds-default-bridge=bridge1 wds-ignore-ssid=no
default-authentication=yes default-forwarding=yes default-ap-tx-limit=0
default-client-tx-limit=0 hide-ssid=no security-profile=default
compression=yes

in the image i posted u can see the amount of traffic on WLAN1 and the ping test . when wlan1 hits 4-5 mbps the latency to all client goes up .
i hope someone has a good idea to share that will help me solve my problem .
thanks

2

My opinion, you are hitting your capacity limit.

Every time a customer with a lower connection speed/poor signal connects, your total bandwidth drops to whatever that unit is capable of. If they are streaming data, that entire AP will suffer. You need to get the lower signal customers improved to keep them from slowing down the AP, and you are getting near capacity for 10MHz channel.

3

thank you for replying
i have already noticed the low signal on some of my clients , i have improved their signal and their CCQ , but still have the same problem , this also happens even if there no internet connectivity , if i unplug the ether cable of RB from my main switch ,and plug it directly to my laptop , i can still see alot of traffic going on just TX from my AP to all other clients .
i have setup my firewall to block certain port and also DHCP broadcasts and so on but still suffering from the same prob .
hope u got any other idea u can share with me .
thank you

4

Why on earth are all your clients in station-WDS!? There’s your problem right there.

Convert them to station or if you need to bridge station-pseudobridge mode… The only time you need WDS is if you’re transparently bridging traffic, which should only happen with wireless backhauls, not client CPE’s.

Every little broadcast packet is being transmitted over the WDS bridge to every single CPE and eating up your wireless bandwidth.

Think of it as a physical layer HUB – Garbage In Garbage Out…there’s no MAC layer decision making here.

Use WDS as sparingly as possible!! You’ll cut that 3.4Mbps TX Traffic down to practically nothing if you get rid of the WDS links.. Wasted bandwidth…

Also Disable Default Forwarding.. there’s no reason that should be on.

5

Thank you wildbill for your reply .
on the AP , i added filters to the bridge while running on WDS .

0 chain=forward out-bridge=External-Bridge action=accept
mac-protocol=pppoe-discovery

1 chain=forward out-bridge=External-Bridge action=accept mac-protocol=pppoe

2 chain=forward action=drop

i only need PPPOE packets to be passed on my bridge .
i took your advice and tried switching my clients CPE to station or , station-pseudo-bridge but the client wasn’t able to connect , all PPPOE packets didn’t forward , something must have went wrong with my settings .
i would appreciate if u could help me out , and point out where did i go wrong with stations so they couldn’t connect to the internet .
Thank you .

6

SWERabbiT, a wlan in station mode can’t be port of a bridge…

Try to put all CPEs in mode=station, but do the pppoe-client connection and routing or natting of the traffic of the client on the same CPE… can run a DHCP-Server assigning IPs to the LAN inside of the CPE…

Good luck and regards!