Failed with Gene clustering on TOM−based dissimilarity

Question

[Ruta]

Hello,

As a beginner with WGCNA I'm using this tutorial for my data analysis.

In the section 2.b.4 Clustering using TOM

# Call the hierarchical clustering function
geneTree = hclust(as.dist(dissTOM), method = "average");

# Plot the resulting clustering tree (dendrogram)
sizeGrWindow(12,9)
plot(geneTree, xlab="", sub="", main = "Gene clustering on TOM-based dissimilarity",
labels = FALSE, hang = 0.04);

I'm not getting the right clusters on "Gene clustering on TOM−based dissimilarity"

My dendrogram looks like this:

I would really appreciate, if somebody could advice me what I could change in this hierarchical clustering.. or etc.?