i had stable wireless link with pings about 1ms and 20mbit bandwidth but i had to change the cpe-antenna on client site. so there is a new cpe-antenna with a new 411 routerboard and new wireless card (CM9). the hardware before was also a 411 routerboard with a cm9 wireless card.
then i manually cloned the settings and now the wireless link is terrible.
here some pings over the wireless link (before 99% 1ms)
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10.0.0.2 64 byte ping: ttl=64 time=377 ms
10.0.0.2 64 byte ping: ttl=64 time=115 ms
10.0.0.2 64 byte ping: ttl=64 time=229 ms
10.0.0.2 64 byte ping: ttl=64 time=191 ms
10.0.0.2 64 byte ping: ttl=64 time=143 ms
10.0.0.2 64 byte ping: ttl=64 time=54 ms
10.0.0.2 64 byte ping: ttl=64 time=208 ms
10.0.0.2 64 byte ping: ttl=64 time=3 ms
10.0.0.2 64 byte ping: ttl=64 time=26 ms
10.0.0.2 64 byte ping: ttl=64 time=240 ms
10.0.0.2 64 byte ping: ttl=64 time=191 ms
here some info from monitor from client site
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status: connected-to-ess
band: 5ghz
frequency: 5500MHz
tx-rate: "48Mbps"
rx-rate: "6Mbps" fluctuating by second, either 6 or 48Mbps
bssid: 00:0B:6B:D9:8C:BE
radio-name: "000B6BD98CBE"
signal-strength: -76dBm
tx-signal-strength: -75dBm
noise-floor: -98dBm
signal-to-noise: 22dB
tx-ccq: 45%
rx-ccq: 32%
p-throughput: 24144
overall-tx-ccq: 45%
authenticated-clients: 1
wds-link: no
nstreme: yes
polling: yes
csma-disabled: no
framing-mode: none
routeros-version: "3.10"
802.1x-port-enabled: yes
thanks in advance!