Low throughput and high latency on 2,4ghz AP after some time

RouterOS Wireless Networking
21

I have the samw problem on 951g-2hnd
after 2 years no solution found…

22

normis… please help!!!

i upgraded to ROS 6.27 and now i am facing real bad latency on WiFi 802.11

the ping timeout is starting from 1ms and going to 1000ms…

what can be done… this really getting bad for me.. :frowning:

23

now i changed the “HT Guard Interval” value to “LONG” and it gave me some what better stability… but still there is a surge. check the the screenshot attached.
roserror-1.png

24

This is a very old topic of mine, but here is what I did to improve things for me :
Using default rates, previously was using only-g. Started using wireless-fp package. Made some wireless rules to limit number of connections.
Mine are all ptmp links. I have quite good results now, but still sometimes there are times with high latency and this is mainly with some client having rx-rate of 1mbit. This is the only thing I don’t know why is happening. Maybe missing management frames and reducing rate. But I have given up to expect better because this is plain 802.11 and the protocol itself has problem with hidden nodes and so on ..

25

can you please share your rules for limiting connections…

ironically it happens even when i have one client connected…

26

With 1 client and a good signal never had problems. Here are some of the rules, I have more but they are a bit specific for my network :

/ip firewall filter add action=add-src-to-address-list address-list="udp limit" address-list-timeout=1m chain=forward connection-limit=4,32 dst-port=!53 protocol=udp
/ip firewall filter add action=drop chain=forward connection-limit=4,32 dst-port=!53 protocol=udp
/ip firewall filter add action=add-src-to-address-list address-list="tcp limit" address-list-timeout=1m chain=forward connection-limit=11,32 dst-port=1024-65535 protocol=tcp tcp-flags=syn
/ip firewall filter add action=drop chain=forward connection-limit=11,32 dst-port=1024-65535 protocol=tcp tcp-flags=syn

The rules also include a ‘src-address=’ for my network, because otherwise sometimes there are problems with the service. You can play a bit with the ‘connection-limit’ if needed.