@Bluespicker Did you in fact connect the phone WiFi to the temporary camera network (Step #5) as described in the setup video, starting at the 1 minute mark (see video link)? Once you connect to your phone, you then proceed to choose an appropriate 2.4GHz home network. Be patient as my connection failed once or twice but then connected. I hope that helps.

How to Set Up Your Tapo Smart Wire-Free Security Camera (Tapo C425/TC85) | TP-Link - YouTube

  @Bluespicker I had a similar issue this morning. I had three TC85 cameras successfully connected but could not get a C425 additional camera to connect.  I tried for quite a while. 

The C425 is the same camera as TC85 except for some packaging differences. So out of desperation I selected TC85 instead of C425 in the app and it instantly connected.  I have no idea why.  Maybe I just got lucky and it would have connected that time with C425, or maybe since I already had TC85's on my network it worked. 

But maybe it's worth a try. 

  @Walt_2024 Following the directions was rather easy and yes, I did every step... right up to the pairing which failed as the message was no 2.4 Ghz network found. I have Xfinity internet and decided to just rent their router/modem which was a mistake as they have removed setting many of the network features which they call automating them. Today, I noticed that the secuiry setting of WPA2 was now set. I could not set this previoulsy as it wasn't on the drop down menu as a choice rather they ahd WPA2 grouped along with several others as the only choice. I went through the direction again and  everything worked except now, the software says "Weak network SIgnal" cannot initiaize. The camera was sitting 2 inches from the modem/router. My PC is on the other side of the house, I have phone, a tablet as does my son and my wife. We haveTvs, xboxes ect all over the house and yet this camera cannot pick up the network. The camera is simply not able to get a network signal yet everything esle in the house works. From what I gather, Xfinity is trying to sell me a device for 2.4 Ghz that boasts the signal. I am headed to best buy to get a new modem/router but I am afraid it will not work if the camera can't obtain the network signal.  My question, what do others use and is a 2.4 Ghz booster required? 

  @Bunyipb I think Xfinity modem/router is cutting signal strength on the 2.4 Ghz to force me to buy a boaster. I couldn't get a 2.4 Ghz signal on the camera with the camera literally sitting 2 inches away form the modem/router. My problem is: is this booster 100% required on 2.4 networks all the time or can I just replace the modem/router and fix this