I have been running Shaw 300mb regular internet for about 3 years. The modem is in bridge mode and wifi is via Ubiquiti Pro Access Point. Every speed test was consistently running about 325MB.

I have just upgraded to Fibre 500 this past week. When I connect my laptop directly to the modem via ethernet, speeds are about 530mb down and 120mb up so both above what I should be getting. As soon as I connect to WiFi, speeds are dropping to 50mb down and 45mb up. I have tried resetting my entire server - (1 Unifi Switch, 1 Unifi POE 250W & 1 Unifi Gateway Pro). 

Has anyone experienced something similar?