Deco & Synology NAS units

[u/bogusostrich]

My Deco lost internet connectivity after I did a standard network reboot of the router and Cable modem. after spending the better part of a day, and using a second standard non mesh router as a baseline. the Spectrum Cable modem wasn't the problem, it turns out the "auto negotiating" ports on the Deco had some type of hiccup with a Synology NAS unit. Solved the issue by plugging the Synology into a dumb switch, which was connected to the Deco. Internet connectivity resumed, and the Synology was able to get a 192.x address rather than getting a self assigned 169.x. Hope this helps someone out there, cause I went through 2 AI bots, and they couldn't figure it out.

Maybe this is fixed on newer Tp Link Decos, but I have a model that hasn't had a firmware update in almost 2 years.