Apple MacBook Sierra Wireless WIFI 5GHZ

[Valter_Veiga]

MacBook running HighSierra in wireless 5Ghz very instable in access-points 3825, 3805, 3912 with controller C25 running v10.31.04 ou v10.31.04.

After a week of testes the best solution is: Disable 5Ghz and use the 2.4Ghz interface Only

[Valter_Veiga]

Upgrade to version 10.31.6

The Client Representation TxBF is resolved in the AP39XX but not in the 38XX.

After one day with test users in the 5Ghz with no fails, I have open the 5Ghz to the rest yesterday afternoon.

Today it will be the big 5.0AC test.

Note: The ping replays are still +- 200ms from server to Client Mac in 5.0AC

[Peter_Chang]

Hi Valter,

I'm curious how this case is going? Are you still having problems?

Peter

[Peter_Chang]

We have it enabled.

[Valter_Veiga]

Peter, can you check the protocol assign to MAC ?

IN my case I have disable LDPC and don't have the option TxBF but the client reports does as the used protocol .

[Chris_Sherman]

I haven't seen any mention of mac os' other built-in wi-fi tools: http://www.letstalk-tech.com/access-wifi-scanner-macos-sierra/ I use these a lot and the scanner has more info than the command-line scanner and it's easily sortable. The Performance tool shows SNR with no need to install anything. Also, the iphone/iPad AirPort Utility scanner won't show wi-fi by default. It must be turned on under preferences.

I'm also curious how close the other APs are. Macs excel at picking out a crummy signal so with the 5 ghz power at max(assuming the others are too) there's a good chance it's picking a loud but poor far-off signal. We use 10 dbm on 5 ghz if it's meant for one medium-size room. I'm still experimenting with 16-14 dbm in the dorms so 5 ghz will easily service a neighbor. This is very general with a lot of exceptions.