@David-TP O.K. Thanks. Let me try.

@yves_b I have done this a few times. I have also restart the M5 device and uninstall the android app and reinstall it. Nothing works. I think other people also have the same problems. You may find...

I have been using the Deco M5 for my home wireless network for a couple of years. It works fine. However, recently, I tried to reserve an IP address for one of my Raspberry Pi's but could not find it...

@David-TP Thanks. Yes, this is the problem. Thank you for pointing out. Another problem is that the M5's router does not work as well as the TP-Link C7 router.

I recently installed Spectrum internet with 300 Mbps speed. If I directly connect my PC to the cable modem, it can indeed achieve 300 Mbps. However, when I connect the modem internet port to the Deco...