Hello Pascal, I am one of the engineers from the Small Business team.
Unfortunately, no the golden rule for the cluster is the same WAP model and the same firmware version.
A cluster can be formed between two APs if the following conditions are met:
- The APs use the same radio mode (for example, radio 1 uses 802.11g)
- The APs are connected on the same bridged segment.
- The APs joining the cluster have the same Cluster Name.
- Clustering mode is enabled on both APs.
I hope you find this helpful.
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