This is extremely problematic as I can't just open my macbook I use for work and start working. After sleep mode it disconnects from wifi and I can't reconnect until it reboots which takes about 5-10 minutes with all the logins I have to do.
Why does it do this? It even shows it is connected to wifi on the wifi settings but it's not.
Are you very close to the WiFi router? Overlapping waves may confuse it.
If you are multiple floors from the WiFi router, the signal may be extremely weak, and you might need to setup either the WiFi as 2.4 Ghz instead of 5 Ghz, or get a wireless distribution point router halfway in between.
You may want to use screen saver instead of energy saver, and also look at Energy Saver wake LAN settings.
Do you have auto Reconnect active?
thanks for the reply. Yes it is about 20" away on my desk. It may even be frying my brain its so close.
Yes autoconnect is on. I did try something different .
Last night before I closed it I disconnected wifi.
This morning I opened it and turned wi-fi on.
At first it showed no internet even though wifi showed connected.
Then after a minute, while I was answering these. Internet connection was established.
This may be a workaround to the hardware/OS "bug"
Change to a less crowded channel in your router.
I had to restart as internet lost again and couldn't re-connect even though it showed connected to wifi.
the only devices in the house using wifi are phone and tv box and dvr.
Never heard of a computer getting "crowded out" on wifi. It's not like cable internet bandwidth.
Actually it is worse. The bandwidth of WiFi is much less than that of ethernet or coax. So yes it can happen. I would experiment and see if you can temporarily remove all other items from WiFi to see if that's affecting it. Make sure the WiFi you are using a secure WPA2 encrypted WiFi, and not an open WiFi without a padlock. Make sure that you use 2.4 Ghz, as the 5 Ghz band is typically better on the same floor line of sight. The only thing that makes it better is the frequency hopping. When it gets real crowded, then it doesn't really matter.
I'm on my third work macbook due to problems with past two. I would suspect macbook with new problem that the other 2 didn't have.
"Never heard of a computer getting "crowded out" on wifi"
https://www.makeuseof.com/how-to-change-wifi-channel/
Never said you were "crowded out", but too many users on the same channel can, and often will, degrade performance to a significant degree.
I like app Wifi Explorer Lite to examine channel usage: https://apps.apple.com/us/app/wifi-explorer-lite/id1408727408?mt=12
like I said before the other 2 macbooks did not have this problem in the last 2 years working from home where there is only a few items on wifi. I would expect this in a crowded office of 20-50 people or more.
And it works, after reboot.
Channel usage is not limited to your house. Right now I can see seventeen networks all available for use. They are neighbors of mine. Sometimes, usually in the evening, I can see thirty or more.
The only way you'll ever know how crowded a given channel is will be with a network analyzer.
I know; LARGE picture right now:
My network is Da*nation.Alley. I'm in a residential neighborhood and you can't see all the networks because of lack of screen real estate on a 27" iMac.
Purely FYI: https://www.imdb.com/title/tt0075909/
my closest neighbor is literally 2/10 of a mile away.
This is everything on wifi including the KT7D laptop.
If this breaks an apple computer's wifi , then screw it. I'll ask for a windows laptop from my employer next time.
Enjoy your Windows box.
but thanks for you help, and my condolences to being squeezed in so tight in a pool of humanity, can't imagine...
I'm not squeeze;, my network works beautifully with very stable connections for eleven devices with speeds from 450-900 MBps depending on connection type. ... I know how to adjust for maximum capabilities all aspects of my network.
The only snake you need to fear is the one you can't see.
Macbook loses wifi after sleep mode and can't reconnect
