[Server-devel] Missing XOs in neighbourhood view using XS

[David Leeming]

Trying out the school server for the first time at a training session in a
Solomon Islands deployment. With 23 trainee teachers, using G1G1 XO-1
laptops with build 703 (update 1). All registered successfully and all able
to connect to and access the server. 

 

It seemed to be working 100% but then we started noticing that it was not
unusual to  be missing some XOs on the neighbourhood view. This was apparent
with an exercise where people in groups of 4-5 tried to locate each other
and make friends, in order to manage sharing in smaller groups. Almost all
of the groups could not locate all of the other members of their group.

 

I checked, all were registered, connected to the school mesh and all could
see most of the other laptops. But not 100% reliably all of the others.
Rebooting did not help much.

 

This was in a very rural location with no cell phones, no wireless access
points apart from the XS active antenna, in a small wooden classroom 6 x 6m.
There was, however, an old inverter running; not sure if that might have
been making RF noise. We were running the school server from a battery.

 

I was using an XS set up to demonstrate the concept only, on a 4-year old
Toshiba A3 laptop.  I have a prototype active antenna.

 

So (a) should I expect all the other laptops to be visible? And (b) what is
the maximum number of XOs per server?

 

Server access seems very robust and very impressive. But the unreliable
collaboration is a disappointment, it was not much better than a similar
size group using the simple mesh. What could be the reason?

 

David Leeming

Honiara, Solomon Islands, South Pacific

 

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