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WiFi high ping after sleep wake cycle

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Oct 23, 2014
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Motherboard
Gigabyte GA-Z97x-UD3H
CPU
i7 4790k
Graphics
RX 580
Mac
  1. iMac
  2. MacBook Pro
Mobile Phone
  1. iOS
Hi,

I use BCM94360CD wifi + bluetooth card. It worked well in 10.10, 10.11, 10.12, but til 10.13 this high ping issue came. "Wake for network access" has been turned off. If I checked "Wake for network access", after the first sleep wake cycle the WiFi would break and I got a high ping. To turn off the "Wake for network access" just works partially, which I mean the WiFi works well after first several sessions of sleep wake cycles. But after several days of several times of sleep wake cycles, the WiFi finally breaks and high ping issue turns up.

Tom
 
I have the same issue on 10.15.2 with BCM43602. Any suggestions?
 
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