My company recently acquired some dragon wave licensed backhauls.

These devices have no way to test throughput. We deployed a mikrotik on each side of each backhaul.
We followed instructions from here http://www.mikrotik.com/testdocs/ros/2. ... /btest.php

and we keep receiving message can't connect. We need to have a way to test the link between these two backhauls. I've tried to research but theres limited content available pertaining to this error.

Please help me out as I'm the one expected to figure this out. but if i followed the MT instructions as described above and still can't get it to work I don't know where to go from here.

I don't know about those products you mention, but a few points would be:

• 1. Is there any firewall restricting connections in any of the ends?
  2. Can you verify connectivity between your routerboards with a simple ping?

If you do have a firewall, it's can be tricky to implement the correct rules.
As far as I remember, bandwidth test uses a random set of ports starting around port 2000. On my firewalls I allow traffic to all ports between 2000 and 3000 on both tcp and udp.

i can ping from one router to the other no problem.
both routers are using public static ips.
i tried setting up both routers as a bandwidth server. then tried to test from each client to each server.
i added a firewall rule which allows udp traffic from their respective bandwidth test client.(mikrotik with public ip).

Both of these routers are bridged atm
they only have a wan ip which we can use to winbox in.

i figured it out.
one router had a bridge filter rule dropping all traffic so i made rules allowing from test cllient ip and put the rule above the drop rule.
that got one side working.
then i setup secondary ip within same subnet as the primary bandwidth test server.
this was on the router not mentioned above. so in short one router had a firewall rule dropping the test traffic.
the other router wasn't part of the same logical subnet until i added a secondary ip within that subnet.
I do wish i would have gotten more response from the community because i figured this out trial and error.
Luckily the new licensed backhauls aren't live on the network so I had the luxury of trial and error but most time do not.
hopefully this helps someone learn from my mistakes.