Question Asus PCE-AC88 5G connection issue with EA8500

[egckhab]

Hi,
I'm from HK and using LinkSys EA8500 as home router. Originally I'm using Intel on-broad wireless AC-9560. Due to signal strength, my 5G ac connection only reach 15xMbps.
So I brought a Asus PCE-AC88 and hopes its 4 antennas can induce better speed. I have installed latest driver from Asus and it can connect to my router 2.4G 802.11n network normally. The speed is good (up to 17xMbps).
However, if I try to connect to 5G 802.11ac connect, it takes very long time for connection. Even can connect successfully, usually no network traffic. I have tried different wifi channel and channel width, but problem remains. Then I set wifi mode of 5G Hz band to 802.11n, PCE-AC88 can connect successfully (but of course under n-speed 70xMbps)

Anything I have missed in order to make PCE-AC88 connect to EA8500 ac wifi mode? I have other device like HP/Lenovo laptop, Andriod/iPhone, XBOX etc...All of them can connect via 802.11ac mode successfully.

Thanks for your time.

Martin

 

[egckhab]

anyone can help?

 

[bill001g]

Very technically all connections to a 802.11ac router are 802.11ac since they included all the older data encoding methods.

The speed you get is negotiated and they do the best they can to get the highest combinations. You can look up what the connection values mean. This is called MCS.

There are very few things you can do to influence the negotiation. You might be able to force the bandwidth to 80mhz on your router. Problem is it might not connect then.

Be careful more antenna does not always mean more speed. In most cases the end device only has 2 antenna at the most. This means even if the router can use all 4 antenna the end device can't and it will drop back to using only 2x2 mimo.

 

[egckhab]

In fact I have tried all bandwidth 20/40/80
Under 5G, PCE-AC88 can only connect via 802.11ac with bandwidth 20. Of course with a ver low speed ~10Mbps
40 and 80 bother have connections problem

 

[egckhab]

Just have more findings
If I set the 2.4G to 20Mhz only ( or even shutdown 2.4G wifi), the 5G 802.11ac connection will be little better.
I will score 50% stable but still in low speed (~50-100Mbps)

I can sure my Intel onbroad wifi don't require such setup