I upgraded to High Sierra. Now when the Mac sleeps my connectivity to the internet is removed. Icon in the top right still shows active. A TCP Dump seems to show local traffic is still working (in particular I see connections to the iPhone) . However, any attempt to open a web page or use email results in nothing.
MacBook Pro with Retina display, macOS High Sierra (10.13.1)
That was completely unhelpful, as this issue is specifically related to MacOS 10.13, and has not been resolved in either of the minor or incremental updates.I have the following computers, all of which, have the same problem, of wifi non-responsiveness after sleep, without turning wifi off and on again:
Late-2011 MacBook Air
2016-MacBook Pro
2013 Mac Pro
Mid-2014 Mac Pro
Mid-2015 MacBook
All of these machines, are connected to separate networks, with their own individual internet connection, on their own solitary wifi network, and in different premises entirely, and all are running 10.13, and ever since the update to 10.13, whenever the machines go to sleep, as soon as the machines are woken from sleep and safari or another browser is launched, any and all web activity is completely non-responsive, until wifi is turned off and then on again.
*We have made sure everything is up to date.
*There is no need to reboot routers or modems because other devices such as iPads and iPhones, are functioning when connected to their networks, perfectly.
The only presumption can be that High Sierra has a problem!
This is ALSO NOT a local machine or user problem...This IS a problem with the implementation of 10.13, that remains unfixed, as of 10.13.2.
THIS NEEDS TO BE ADDRESSED PROMPTLY!
WiFi Failure Despite Icon On After Sleep After Upgrade to High Sierra
