It could be wireless interference or congestion on your end, or particular settings on your router. If you still can’t get it working well, change to a better router. I would recommend the Tp-Link C7 v4, but not sure if you are willing to try TP-Link again, so I would recommend Asus as an alternative brand, as recommended by bro Jjuggler.
Again, it could be wireless interference or congestion on your end, or particular settings on your router. Last resort, change your router. I don’t know why AC1200 has so many problems, when their other routers are really good. You could try the Tp-Link C7 v4, or Asus routers as an alternative brand.
That might be it, but there have been multiple complaints about the TP Link AC1200 for some reason.
Homeplug is a good solution, if you are on the same wiring phase, but if not, it could be very inconsistent. I am quite surprised that the C7 v4 is not performing as expected. My C7 v2 that I used to have is very good, and its signal is quite strong as well.
True bro. I can’t really recommend the lower end Tp Link models now, as there have been many inconsistency issues. The least I could recommend for budget issues is the Archer C7 v4, and even then, I am hestitant to do so as I am worried about the performance. Asus is good in the sense that they keep updating their firmware, even for their older models, something Tp-Link should also do for their older models, as they seem to be more keen to releasing new versions of their routers than improve on an older model’s firmware.

Don’t get me wrong, I like Tp-Link products, and am a fan of them, but they need to step up and address some issues that people have with their routers.

As I say before, homeplug is very inconsistent and it is not 100% reliable. If there is electrical noise, it will be affected. But, if it is as cheap as you say, it would be worth a try.

If you are not confident in updating the firmware, then don’t do it. It will be very hard to roll the firmware back if there are any problems.

Good to hear that. At least they will,be responsible for it. Just be aware that it is the 12/12 sale tomorrow. Routers will be discounted hopefully, so choose a good one if you have the budget.