First sorry on bad English.
i got one problem and i think it’s hardware or software in client site…
Situation:
AP: Mikrotik running as AP: atheros card (54Mbps) with Slotted Waveguide (homemade-arround 15 dBi);
client:Canyon 514 with Yagi antena (homemade-arround 15 dBi).
Signal strenght (what Mikrotik reports) is -68dBm.
Screenshot:

From this image you can see that there is 2 clients connected and that is ok.
2. client is 1,5km away from AP and connects with 48/36 and the 1.st one is 0,5km away and connects with 54/1…
I dont get it…
When i do scan on Canyon AP i get this (painted what you dont need to see):

Now am confised about this… Signal is ok, connection ok…
Ping from Linux server:
PING 192.168.2.128 (192.168.2.128): 56 data bytes
64 bytes from 192.168.2.128: icmp_seq=0 ttl=255 time=9.1 ms
64 bytes from 192.168.2.128: icmp_seq=1 ttl=255 time=2.6 ms
64 bytes from 192.168.2.128: icmp_seq=2 ttl=255 time=2.7 ms
64 bytes from 192.168.2.128: icmp_seq=3 ttl=255 time=2.6 ms
64 bytes from 192.168.2.128: icmp_seq=4 ttl=255 time=2.6 ms
64 bytes from 192.168.2.128: icmp_seq=5 ttl=255 time=2.8 ms
64 bytes from 192.168.2.128: icmp_seq=6 ttl=255 time=2.7 ms
64 bytes from 192.168.2.128: icmp_seq=7 ttl=255 time=2.6 ms
64 bytes from 192.168.2.128: icmp_seq=8 ttl=255 time=2.8 ms
64 bytes from 192.168.2.128: icmp_seq=9 ttl=255 time=2.7 ms
64 bytes from 192.168.2.128: icmp_seq=10 ttl=255 time=2.6 ms
Same from Mikrotik… 0% loss, min=2ms max=10 ms…
When i try to copy something speed is 100KB/s max (1Mbps) and same from client…
Any idea? Thanks