Hi All!
I have big problem.
I use more mikrotik 2.9.6, wrap 2c routerboard with cm9 radio card for links and senao NL2511 cards for users.
The senao card is AP-bridge mode with 30 users.
Sometimes the ping times 10-20ms but sometimes 500-1000ms independently the download and upload rate.
I probe channel change or other settings change but not work good.
whether good idea the upgrade 2.9.40 version?
Thanks your answers.
Steve
ps: sorry my english, i hope your understand me
there had been many updates to drivers and software since that version, i recommend you to upgrade to newer version.
I upgrade the 2.9.40 version but nothing change.
copy of ping times:
64 bytes from 10.10.2.19: icmp_seq=128 ttl=254 time=512 ms
64 bytes from 10.10.2.19: icmp_seq=129 ttl=254 time=288 ms
64 bytes from 10.10.2.19: icmp_seq=130 ttl=254 time=353 ms
64 bytes from 10.10.2.19: icmp_seq=131 ttl=254 time=226 ms
64 bytes from 10.10.2.19: icmp_seq=132 ttl=254 time=323 ms
64 bytes from 10.10.2.19: icmp_seq=133 ttl=254 time=256 ms
64 bytes from 10.10.2.19: icmp_seq=134 ttl=254 time=338 ms
64 bytes from 10.10.2.19: icmp_seq=135 ttl=254 time=354 ms
64 bytes from 10.10.2.19: icmp_seq=136 ttl=254 time=428 ms
64 bytes from 10.10.2.19: icmp_seq=137 ttl=254 time=339 ms
64 bytes from 10.10.2.19: icmp_seq=139 ttl=254 time=257 ms
64 bytes from 10.10.2.19: icmp_seq=140 ttl=254 time=461 ms
64 bytes from 10.10.2.19: icmp_seq=141 ttl=254 time=159 ms
64 bytes from 10.10.2.19: icmp_seq=142 ttl=254 time=130 ms
64 bytes from 10.10.2.19: icmp_seq=143 ttl=254 time=6.14 ms
64 bytes from 10.10.2.19: icmp_seq=144 ttl=254 time=9.35 ms
64 bytes from 10.10.2.19: icmp_seq=146 ttl=254 time=151 ms
64 bytes from 10.10.2.19: icmp_seq=147 ttl=254 time=140 ms
64 bytes from 10.10.2.19: icmp_seq=148 ttl=254 time=14.1 ms
64 bytes from 10.10.2.19: icmp_seq=149 ttl=254 time=6.76 ms
64 bytes from 10.10.2.19: icmp_seq=150 ttl=254 time=107 ms
64 bytes from 10.10.2.19: icmp_seq=151 ttl=254 time=5.88 ms
64 bytes from 10.10.2.19: icmp_seq=152 ttl=254 time=307 ms
64 bytes from 10.10.2.19: icmp_seq=153 ttl=254 time=5.03 ms
64 bytes from 10.10.2.19: icmp_seq=154 ttl=254 time=6.39 ms
64 bytes from 10.10.2.19: icmp_seq=155 ttl=254 time=30.8 ms
64 bytes from 10.10.2.19: icmp_seq=156 ttl=254 time=12.4 ms
64 bytes from 10.10.2.19: icmp_seq=157 ttl=254 time=174 ms
64 bytes from 10.10.2.19: icmp_seq=158 ttl=254 time=289 ms
64 bytes from 10.10.2.19: icmp_seq=159 ttl=254 time=388 ms
wlan2 iface (prism) ap
download: 1000-1200kbit/s
upload: 80-100kbit/s
cpu: 40-60%
wlan1 iface 5ghz (atheros) link
upload 3,5-4Mbit/s
download 1000-1200kbit/s
Generate this problem too many tcp connections or network packages?
current ping state:
64 bytes from 10.10.2.19: icmp_seq=440 ttl=254 time=1523 ms
64 bytes from 10.10.2.19: icmp_seq=441 ttl=254 time=1226 ms
64 bytes from 10.10.2.19: icmp_seq=442 ttl=254 time=1198 ms
64 bytes from 10.10.2.19: icmp_seq=443 ttl=254 time=2016 ms
64 bytes from 10.10.2.19: icmp_seq=445 ttl=254 time=3640 ms
64 bytes from 10.10.2.19: icmp_seq=446 ttl=254 time=2640 ms
64 bytes from 10.10.2.19: icmp_seq=447 ttl=254 time=1744 ms
64 bytes from 10.10.2.19: icmp_seq=448 ttl=254 time=3116 ms
64 bytes from 10.10.2.19: icmp_seq=449 ttl=254 time=2141 ms
64 bytes from 10.10.2.19: icmp_seq=450 ttl=254 time=1199 ms
64 bytes from 10.10.2.19: icmp_seq=451 ttl=254 time=4600 ms
64 bytes from 10.10.2.19: icmp_seq=452 ttl=254 time=3639 ms
64 bytes from 10.10.2.19: icmp_seq=453 ttl=254 time=4348 ms
64 bytes from 10.10.2.19: icmp_seq=454 ttl=254 time=3367 ms
64 bytes from 10.10.2.19: icmp_seq=455 ttl=254 time=2379 ms
64 bytes from 10.10.2.19: icmp_seq=456 ttl=254 time=1399 ms
wlan2 state
download 100-200kbit/s
upload 50-60kbit/s
I’m puzzled.
steve
and next ping 
64 bytes from 10.10.2.19: icmp_seq=24 ttl=254 time=8.18 ms
64 bytes from 10.10.2.19: icmp_seq=25 ttl=254 time=4.00 ms
64 bytes from 10.10.2.19: icmp_seq=26 ttl=254 time=9.28 ms
64 bytes from 10.10.2.19: icmp_seq=27 ttl=254 time=4.55 ms
64 bytes from 10.10.2.19: icmp_seq=28 ttl=254 time=7.90 ms
64 bytes from 10.10.2.19: icmp_seq=29 ttl=254 time=9.22 ms
64 bytes from 10.10.2.19: icmp_seq=30 ttl=254 time=8.62 ms
64 bytes from 10.10.2.19: icmp_seq=31 ttl=254 time=9.32 ms
64 bytes from 10.10.2.19: icmp_seq=32 ttl=254 time=3.98 ms
64 bytes from 10.10.2.19: icmp_seq=33 ttl=254 time=5.04 ms
64 bytes from 10.10.2.19: icmp_seq=34 ttl=254 time=9.49 ms
64 bytes from 10.10.2.19: icmp_seq=35 ttl=254 time=7.24 ms
64 bytes from 10.10.2.19: icmp_seq=36 ttl=254 time=10.6 ms
64 bytes from 10.10.2.19: icmp_seq=37 ttl=254 time=5.45 ms
64 bytes from 10.10.2.19: icmp_seq=38 ttl=254 time=16.9 ms
64 bytes from 10.10.2.19: icmp_seq=39 ttl=254 time=8.75 ms
64 bytes from 10.10.2.19: icmp_seq=40 ttl=254 time=10.6 ms
64 bytes from 10.10.2.19: icmp_seq=41 ttl=254 time=4.12 ms
64 bytes from 10.10.2.19: icmp_seq=42 ttl=254 time=9.23 ms
64 bytes from 10.10.2.19: icmp_seq=43 ttl=254 time=8.94 ms
64 bytes from 10.10.2.19: icmp_seq=44 ttl=254 time=4.97 ms
64 bytes from 10.10.2.19: icmp_seq=45 ttl=254 time=11.9 ms
64 bytes from 10.10.2.19: icmp_seq=46 ttl=254 time=8.45 ms
64 bytes from 10.10.2.19: icmp_seq=47 ttl=254 time=7.28 ms
64 bytes from 10.10.2.19: icmp_seq=48 ttl=254 time=3.75 ms
64 bytes from 10.10.2.19: icmp_seq=49 ttl=254 time=7.20 ms
64 bytes from 10.10.2.19: icmp_seq=50 ttl=254 time=6.23 ms
64 bytes from 10.10.2.19: icmp_seq=51 ttl=254 time=12.9 ms
64 bytes from 10.10.2.19: icmp_seq=52 ttl=254 time=14.5 ms
wlan1 (atheros)
ul 3,4-4Mbit/s
dl 1-1,3Mbit/s
wlan2 (prism)
dl 1,2-1,6Mbit/s
ul 50-100kbit/sec
And I not change nothing
???
This is an ongoing topic and is in several other posts. Turn off NStreme and that will fix your problem.
I have seen other topic with the nstreme setting but I have not problem with the atheros card(this is link, good work)
CM9 settings:
status: connected-to-ess
band: 5ghz
frequency: 5220MHz
tx-rate: 54Mbps
rx-rate: 54Mbps
ssid: “CNLINK01”
bssid: 00:0B:6B:4F:81:EE
radio-name: “CNAP01LINK”
signal-strength: -69dBm
tx-signal-strength: -62dBm
noise-floor: -91dBm
signal-to-noise: 22dB
tx-ccq: 98%
rx-ccq: 24%
p-throughput: 38485
current-ack-timeout: 53
current-distance: 53
wds-link: no
nstreme: no
framing-mode: none
routeros-version: “2.9.40”
last-ip: 10.6.2.24
802.1x-port-enabled: yes
NL2511 senao card settings:
status: running-ap
band: 2.4ghz-b
frequency: 2457MHz
registered-clients: 11
authenticated-clients: 11
nstreme: no
current-tx-powers: 1Mbps:0,2Mbps:0,5.5Mbps:0,11Mbps:0
notify-external-fdb: no
I have the Same problem –
If you run torch you will usually find some users with a lot of connections from bit torrent or something like that.
O yes, I found some user with p2p connections.
I probe setting firewall filters but not work. I’m beginner the mikrotik.
I used linux firewall settings: IPTABLES etc… I
My settings:
chain=forward src-address=10.17.1.2-10.17.1.254 protocol=tcp dst-port=!80 tcp-flags=syn connection-limit=30,32 action=drop
I think so this firewall rule enable 30 connections/user (without onto the 80 port)
Help please!