Hi @Droman, I'm not from TP-Link. Maybe @forrest can give more details on the EAP245 road map and dates for release of mesh-able EAP245 firmware.

Cloudbuster wrote

For the mest would it need the controller?

Yes, to set up, organize, re-organize (on failure) and monitor the mesh a controller is needed. If the controller is then turned off, the mesh will still work, but if a node fails, the controller needs to run in order to detect the failure and to re-organize the mesh.

And also is this how it would work, setup two AP 245 V3 one as the main unit using ethernet and the second one only connected to the main by wifi to create the mesh.

One or more EAPs which have a wired connection are called »root nodes«. One or more other nodes connecting to either the root node or any other node are called »mesh nodes«. Each connection of a mesh node to either a root node or another mesh node is called an »uplink«. Mesh topology is like tthis:

If you want to make use of automatic failover, topology looks like this:

The topology with auto-failover enabled in the controller is kind of a »self-healing« mesh network. For true failover you would have to use two independent connections to two different ISPs and the controller must be reachable by the second root node.

The number of uplinks is limited to 4 per node and there can be 3 hops at maximum.

Note that a mesh network will not increase the total capacity of the whole mesh network. Capacity remains the same as the root node(s) offer(s), the mesh nodes just eliminate the need to have them wired to a router.

Cloudbuster wrote

when used as mesh do you still have separate Bands.

2.4 and 5Ghz with their own name?

Yes, you can still use both bands. The mesh network will use the BSSID with a hidden ESSID in the 5 GHz band to connect between nodes. You can use another SSID, so that it does not interfere with the mesh communication.

Cloudbuster wrote

i wonder if you see any speed decrease using the OC200 mesh.

Every byte you send/receive from a mesh node must be transferred to/from the root node, too. Thus, as long as your bandwdith requirements don't exceed half of the actual (not theoretical!) data throughput your mesh node can achieve, you will not notice a major decrease in speed.