So I’ve been playing around with a couple of B1300’s in mesh mode and also with Goodcloud. (Assuming the same probably holds for the S1300 as well).
I’ve found a few things that haven’t been documented that may be useful to people and eliminate some frustration 
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Slave node - no web interface:
A slave node unit has it’s web server turned off by default when you mesh it into slave mode.
So for me I use a static IP to make my master node 192.168.8.1 and my slave mode 192.168.8.2
After meshing the slave you cannot use your browser to get to 192.168.8.2 and get up the Gl.Inet web interface page or the Luci interface (192.168.8.2/cgi-bin/luci). This is expected response according to Gl.iNet.
Slave node - SSH/WinSCP
You can SSH or WinSCP to the slave node at 192.168.8.2.
Login is root and the password is the same password as your master node.
Enable the web server
You can SSH to the unit
Login in using root and the password from the master node
To enable the web server type : /etc/init.d/uhttpd restart
Web access after enabling the web server
After you have enabled the web server. If you just go to the default address (192.168.8.2) and you try typing in the master node password this is what you get. Not the most explanatory error message out there sadly 
I’ve been advised by Gl-iNet that this is expected response.
However if you type 192.168.8.2/cgi-bin/luci then you’ll get the standard Luci interface, User root, master node password.
Why to I need to access the slave node?
Now you may ask why I need web interface access to the slave node (yes I could use SSH but… ) . There’s two reasons here:
Upgrade firmware
If I just use with the released firmware I’ve been advised that as a new released firmware is available, both nodes will automatically upgrade.
I am however using the “testing” firmware and have to manually upgrade both units. On the master node I can do via the GL.iNet web interface and I can do this using the Luci interface on the slave node; there’s no way to do on from the inaccessible Gl.inet interface.
Since this is really all I should need to do on the slave node (I like to keep both nodes at the same level of firmware) this isn’t a big problem as there’s a “work around”.
Enable “Remote access” to connect to Goodcloud
After I’ve meshed the slave node, because I can’t get to the GL.Inet web interface I cannot enable the remote access components easily (applications->remote->access)
If you want to use Goodcloud with a slave mesh node, you need to enable the remote access part on the node and register the device in Goodcloud BEFORE you set up the slave node otherwise there’s no easy way (I’m sure there’s a manual way) of doing.
I’m sure all this can be done using SSH and command line instructions, but a web interface is easier for a beginner like me
Hope this helps someone out there…somewhere…some time…
