WiFi much slower on my windows 10 pc

Hi.

Thank you for the detailed reply. I'll give the above a try ☺️

Presumably you have connected the external aerial(s), and placed them suitably with regard to any metal around which blocks the signal.

Same with the Wireless Access Point aerials.

You have dropped around 11 dBm with the new Wireless Card so something is worse.

5 GHz -70 dBm is not good. Especially considering your 2.4 GHz was -47 dBm, and now is -58 dBm.

You should be expecting around 6 dBm less than at 2.4 GHz, so say a level around -53 dBm.

Do more aerial adjustments.

So, my desktop and my surface pro 3 showed similar speeds (low) when speed checking next to each other (my friend suggests the surface pro 3 will have 2.4 and 5ghz).

I took my surface pro downstairs next to the router.... Still slow

I looked at channels. My router (standard virgin) has a "channel optimisation" setting. I changed it from channel 11 to channel 6, but the WiFi analyser says whichever channel I'm on it pants! My friend says I should check the graph, but I don't know what it means.

Interestingly, I lost connection 3 times during my Google meets meeting today, but my meeting straight after it on teams worked fine.

It's so frustrating

- - - Updated - - -

Ah. So I repeated the above, but this time left my laptop 10 mins next to the router and it's 100mbps+.

So it must be a distance thing.

So, now to bridge the distance?