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R9000 - only getting 25% WiFi speed on 802.11ad 5GHz
I purchased the router brand new yesterday and upgraded our internet service to 800 mbps, but I am only getting 200 mbps over wifi (I do get 800 mbps with ethernet cable). I have a brand new Dell Pre...
foxbrady, 300.0 Mbps PHY speed explains a lot. schumaku is right, that PHY rate implies 40Mhz channel width, but you should be able to do better?
On Dell PC:
- log in as admin
- computer management / device manager / network adapters
- double click on adapter / click on 'Advanced' tab
- Check these adapter properties:
- channel width for 5 GHz (want auto)
- HT mode (want VHT)
If those settings look OK, sign onto router and verify the 5GHz wireless settings: For "mode" (speed) of 5GHz -- want 'up to 1733', which is 80Mhz channe (other settings reduce channel to 40Mhz and 20 Mhz).
wrote:Here's a screen shot of my adapter. Notice the 300 mbps speed. Does this speed indicate the max proving your point?
This is the PHY speed, sometimes referred as the link rate. With this signal level, and assuming you are near to the router, and permitting the Dell Wireless 1820 is able to do more, I would expect something around the 800 Mbit/s (like 733...866 Mbit/s). 300 Mbitp/s PHY rate is rare, only variant I can think of is with two streams, 64-QAM@5/6, a 400 ns guard interval, and at 40 MHz bandwidth.
The effective constant data throughput rate is well below, at some 50..55% max.
Are there any advanced property settings for this interface?
foxbrady, 300.0 Mbps PHY speed explains a lot. schumaku is right, that PHY rate implies 40Mhz channel width, but you should be able to do better?
On Dell PC:
- log in as admin
- computer management / device manager / network adapters
- double click on adapter / click on 'Advanced' tab
- Check these adapter properties:
- channel width for 5 GHz (want auto)
- HT mode (want VHT)
If those settings look OK, sign onto router and verify the 5GHz wireless settings: For "mode" (speed) of 5GHz -- want 'up to 1733', which is 80Mhz channe (other settings reduce channel to 40Mhz and 20 Mhz).