I have got a new Xperia 5, and it doesnt seem to like my home WiFi. After maybe 30mins the connection shows fine, but web pages fail to load, or really slow. If I toggle WiFi off and on again it's fine for a bit , then it bugs out again. Soft restart also fixes it. Other devices are fine, and we have a good stable fiber connection. I had something similar on my xz1 which cleared after a firmware update, think may be the same again. Anyone else have similar?
