VM do not guarantee wifi speeds. You need to test with a Cat 6a cable wired directly to the Hub with a gigabit capable device.
You could also split the SSID and manually set your wifi devices to the 5Ghz band, as it is the fastest.
• Access your Hub by navigating to 192.168.0.1 • Login with the default login info (on base of Hub) unless you've already updated it. • Go to Advanced Settings > Wireless > Security • Under Wireless Frequency 2.4GHz change the Wifi Network Name (SSID), suggest append _2 to the end. • Repeat for the Wireless Frequency 5GHz, suggest append _5 to the end and click on Apply changes • Try to avoid spaces and periods in the SSID names as they can cause issues with certain devices.
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It would seem (I cannot remember TBH) the HUB3 has better WIFI than the HUB4 but you would be looking at approx. 600Mb/s Max in ideal conditions in the same room or with a WIFI POD in other rooms so 500Mb/s was good depending on surroundings/devices on your old HUB.
Thanks for coming back to us @paulreset and I'm sorry to hear of your issues.
I have looked into your account and can see that there is a power level issue on your account that could be causing these issues and would need a technician visit to resolve this. I can arrange the appointment from here but would need to confirm a few details via a private message, that I will drop over in a moment.
Please look out for the private message and we can get started.