1) In the WinBox program only one of the SXT units appears when I am connected to it directly through my ethernet port. The other SXT does not appear.
The howto you've referred to places both devices into the same bridge and assigns them addresses from the same subnet, so it should work. But the howto is quite outdated, so it is well possible that some of the current factory default settings that you haven't changed (because the manual doesn't mention them as they didn't exist when it was written) prevent Winbox connection to the remote device via the wireless link. Or you may have missed a step, that's why it is always necessary to post the export of the actual config rather than to just refer to an instruction you have followed. So open a command line terminal (by pressing the [New Terminal] button in Winbox), type
/export hide sensitive file=some-name and press Enter in that window, then download the file
some-name.rsc, remove the serial number from it in a text editor and post the rest here between the [
code] and [
/code] tags. And do that for both SXTs.
2) Can I set up the interface to receive a DHCP address, but to "fall back" to use Static IP if there is no DHCP address appearing?
You cannot configure the fallback like Windows, where the "automatic address" is only assigned if DHCP doesn't provide any address before timeout, but you can assign a static address (or even multiple ones) to an interface in parallel to attaching a DHCP client to it.
I also have a question about Stations.
I would like to connect a SXT to a Non-Mikrotic AP. When I select "Station", I do get a connection but no traffic seems to pass through it. How do I get it to correctly bridge the connection?
As the AP is a non-Mikrotik one, you cannot get a real bridge, because the standard wireless protocol uses a single field for both the MAC address of the station and the MAC address of the frame source. So to allow a device behind a station to connect to a device beinhd the AP, you have to use the station-pseudobridge mode and hope that the DHCP server behind the AP assigns IP addresses based on the client ID field rather than based on the source MAC address of the DHCPDISCOVER/DHCPREQUEST.