We are using a RB600 with a dish antenna, connecting to a RB411 and RB493 (multiport LAN). RB600 is about 10 or 13 Km. far from RB411 and RB493. Everybody has nstream enabled. Connected to 9 Mbps (we don't need more).
The clients are connected with a very good CCQ (90 or 100, etc.).
When I'm doing a bandwidth test (from the antennas itself or from computers) I can transmit without problems about 6 or 7 Mbps. The interesting part is that CCQ of that antenna and the other antenna drops to 50 or 60.
Why is the other antenna connection affected? I mean, I transmit from RB411 to RB600, and the connection from RB493 to RB600 gets very bad. And only transmitting at 7 Mbps.
Are there too much collisions because the distance? For only 9 Mbps? I was expecting to have some problems on 70 or 80 Mbps, not only 7...
I haven't played with ACK Timeouts.
It's using Ubuquity network cards.
The CPU Load is not high.
If you need any other information ask me.