Losing network or internet connection after sleep/wake

I'll join in on the 'thank you's'! This problem drove me nuts and your method fixed my issue.

Many many thanks for the countless times I won't have to turn my wifi on and off to get my signal back!

Thanx!

this solution might have worked for me after trying several other solutions.

but also might be only the temporary one like many others.

will post if this solution keeps working and prevents my MBA from disconnecting.

This solution also didn't last too long for me!

Thanks for the idea but I am afraid it didnt work at all for me. Still drops out every second, constantly cycling through connect and disconnect. Only connects to the internet for a second at a time. Totaly useless, I cant connect any other devices cant transfer files. Apple needs to get this sorted. I am reverting to Mountain Lion this weekend.

The suggested solution using a separate network location, didn't work for me either, but although it's sort of a dodgy solution I found something that did: Making my MacBook Pro (13" with Retina, late 2013) use the "personal hotspot" feature on my iPhone.

So my current setup is:

• iPhone connected to WiFi.
• Personal hotspot enabled on iPhone.
• MBP connected to iPhone's personal hotspot.
• Magic Trackpad connected via bluetooth to the MBP.

Also, to avoid draining the battery of my iPhone, I've connected the iPhone to my external display via USB. I've been using the above setup for the last couple of days and have no issues to report yet.

I've had my MBP since the beginning of January and it's been running without any problems whatsoever. The network began acting up last Thursday (January 20th).

And then I feel kinda stupid realising that I'm just using my iPhones 3G-connection instead of the WiFi. Ahh, well at least I'm connected to the Internet.

And obviously, "last Thursday" was February 20th, but anyway.

Not my day today!

Does setting your wifi network spec to 801.g make any difference ?

Before I got the new location working, I found that changing my router from 801.n to 801.g stopped the frequent network disconnections.

Local iPhone or iPad hotspot is a good temporary workaround, but keep an eye on your Mobile Data limit from your Telco. It can get costly if automatic updates are switched on.

Nope, going from 801.n to 801.g didn't make a difference - unfortunately. My MBP is still online for approx. 10 minutes, but loses connection to the Internet altough it retains the WiFi-connection to the router. I can then "Turn WiFi Off/Turn WiFi On" which then starts a new approx. 10 minute cycle.

... and yep! An eye has to be kept on the cellular data usage when using "personal hotspot".

Mahalo NUI! Thank you so much! Been dealing with this since acquiring the MacBook Pro 13 Retina in December. You, Reforger, are awesome!

Throwing in my troubleshooting process in case anyone else finds it helpful.

Problem has been persistent through Mountain Lion and then Mavericks, all versions including today/yesterday's security update (10.9.2). I've done a thorough and detailed documentation of the problem below:

Machine:

MacBook Pro Retina

15-inch, Early 2013

2 external monitors

Settings:

Set to never hardware sleep

Display sleep after 15 minutes

Problem/troubleshooting process:

1) Upgraded my router in October. Problem begins, but ONLY on this laptop. Noticed upon display sleep for a few hours, wireless drops out and gets ! icon over the wireless. This is at home at my home router. I had to turn my wireless on and off to connect again every time, like many of you.

2) Cycled through several routers of different brands. Problems persist. Got a crappy older model of a router on sale during Black Friday, with few options for faster newer bands (including 5ghz). Problem is resolved.

3) Fiance updated my home router AGAIN, with a newer model TPLink with 5ghz enabled. Problem returns.

4) After updating to 10.9.2 today, noticed wireless didn't connect after the restart when setting up Apple ID, and upon getting back into the OS noticed wireless hanging/dropped again. Turned wireless off and on again to resolve.

5) Began to monitor my wireless using Wireless Diagnostics constantly for half an hour. The connection is dropped every time I start the monitoring, under 5 min in. I did this 5-6 times.

6) Called Apple Support. Was told to delete my home network and add again. Problem persists.

7) Came to this thread. I created a new location and followed the instructions to the letter. Problem persists, connection continues to drop every few minutes.

8) Followed advice further down the thread. Deleted System Configurations folder, then added the Home location again, then followed all the instructions of the OP again.

Problem now seems to be resolved. No dropped connections for half an hour now of monitoring. Will keep you all updated as I continue to use the laptop normally and observe what happens after normal use and display sleep.

Hope this helps.

I will apologize in advance for not being computer savy, but I had a similar problem. My internet connection would drop after reopening my laptop. I have a Macbook Retina display running OS X 10.9.1 with a Belkin wireless router FD582356-4. I would run through the network diagnostics as prompted and the connection would restore.

The problem first appeared after Christmas when I upgraded my cable modem (via cable company free deal) to Cisco DPQ3212. My wife was quick to point out the problems after I supposedly upgraded.

I tried reforger's solution to no avail. Further internet investigation mentioned something about Bluetooth. I realized that I had received a Visio TV sound bar for Christmas and had started using the Bluetooth connection to play music from the laptop to the soundbar.

I noticed that if I shutdown the Bluetooth connection to the soundbar before closing the laptop, my problem disappears. Not sure why, but disconnecting before closing the laptop appears to have eliminated my issue.

Yes creating a new location worked for me. Never had that problem before. It started after updating OS X to 10.9.2.

Thank you.

Spoke too soon. After a day the same problem appears again. Disconnecting the ethenet cable and reconnecting re-establishes internet access. When connected to the wired LAN I turn off WiFi.

Here is an update. Frome recovery mode, I repaired disc permissions and re-installed Mavericks. The problem persists. I finally decided to replace my 5 month old ASUS RT-N66U router with my old Linksys WRT160n.

This seems to solve the problem, at least for now. Time will tell.

To restate the case.

I would loose access to the Internet after the second time the MacBook went into sleep mode. Two methods to regain access were possible. 1- disconnect and reconnect the ethernet cable from the MacBook or 2- make the ethernet service inactive and the reactivate. (poosibly a third one from the terminal command line which I did not try). It did not matter if WiFi was also On or Off.