many thanks! After resetting and re-adding the last Deco in the chain, the issue was still there (when I decided to create this forum post), but the issue by itself disappeared a little while (about...

Hi there, I got 3 M4's in a daisy chain setup behind my cable internet router similar to the top picture on https://www.tp-link.com/nl/support/faq/1794/. The main Deco is in Access Point Mode. So the...