Mountain lion wifi problems

Imagine my luck. After this last update Apple published, I naturally updated all of the new features and when I curiously decided to unplug the ethernet cable - surprise! Everything's really worked fine. (just to add the information that I'm one of those "updated snow leopard to mountain lion" users). And of course, why would everything be okay and simple when thing can go wrong so good, especially when exams come at the end of the 6th semester. T-Mobile was working on their lines or something like that, so after they were finished and restarted their stuff, my router's WI-FI connection doesn't work. I calmly plugged in that 8 meters of ethernet back and now I'd like to laser burn those people. When they need you to pay for the service every month, every bill comes strictly on time, no problems. But when they have to insure their service and help users to quickly solve possible problems, they don't care. First apple with a 6 month late update that kind of solves the problem, and now the telecommunication company that doesn't care about anything, but sucking money out of people's pockets. Great!

Solution for NBN + Telstra + Mountain Lion.

We had fibre installed this morning. Every apple device in the house would connect to the tesltra wifi (ipad, iphone 4 & 5, MBpro) but of course, not my Air running Mountain Lion.

At best there would be slow, latent responses for webpage loads - when it worked.

Trawled the web for solutions - this fix worked:

Hard wired a time capsule to our router, then created a WIFI network from the time capsule.

Hope this helps others with the same headache.

Tell me about it! I had to go back to Lion since the wifi issue was unbearable...haven't had any problems since. I think it's absolutely rediculous. However, Lion doens't support AirPlay over the wifi so I had to give that up. Apple is giving me a headache...

Hi,

One thing you might do is check to see if you're connected to your server. After I reentered a new server after switching, I found that linksys had become the thing that the computer was connected to. Had to reorder the list so my server was first in the list.

gl,

kel

Wow! Mine isn't working in anything now. It will for a few minute to trick me, then it's gone. And it's looking like both a hardware and software issue. At least on my end.

I had a problem last March, found the threads, it went away but I still followed the threads considering myself very very lucky. Now back to full scale WiFimageddon. And as I said it is acting like this on SL, L & ML. So I'm at a complete loss. When I can't use my MBP via WiFi, I feel like I have this piece of junk that I was foolish enough at one time to be really jazzed and proud about. Not now. I'm even starting to treat it in a manner that one would a junker car that you polished day in and day out, but now it's not even worth a carwash.

i have MacBookPro5,4 2009 mid installed Mountain Lion. i have wifi problem at home. however in other places my wifi works perfectly. the modem brand is netgear at my home though i can't see it because i am sharing internet with a guy. the modem in it's room. when i click the wifi connection, it connects internet 5 or 10 seconds and drops. this problem is really annoying.

Well, I guess it finally came for me too. I had several months of blissful wifi with my late 2012 Mac Mini. But since last week and what I think was a problematic update, I have no wifi and have spent much time and thought trying to fix it. I guess I'll run some Ethernet cable from the router until Apple decides to fix this. Very disappointed. iPods, iPads, phones, every other single thing in the house connects fine but my fricking desktop will not?...pitiful! Is there any way to uninstall an update as with Windows? I'm a new mac owner... Anyway, fix this!!!! Please!!

it is too clear it is about modem or router. but the annoying thing is other devices can connect internet well. i , once , experienced similar problem in past. i almost try every single troubleshoot from internet. but it doesnt help. and finally i re-install my mountain lion. i only couldn't change channel on router and such things because modem or router is not mine. it is sharing with a guy. unfortunetly he would not allow me to do some changes.

thank you.

I have the same problem and have concluded that some configurations of enterprise networks work fine with other systems but not my MBPr with Mtn Lion. My office upgraded their WiFi recently and the persistent probem seems to have gone away there. But, in other places I am having the same problem. I never have problems at home where there is just a single WiFi access point.

I just updated my MacBook to Mountain lion and the wifi problem came right away. I tried all kinds of solutions. First , I tried to change language, it worked. Then I restarted, back to no vain. Then I tried to delete the system configuration folders, it worked, then I was curious, is I shut it down again. And no vain again! I tried the VPN connection, the new name in location , nothing worked. Now I tried the Bluetooth, it's working! So I decide I will not restart it for a while!

Any updates on this issue. I'm facing the wifi drop problem on my 2012 macbook pro. Wifi in MBP works fine at my work. At home network, have other devices working fine (2 iphones, 2 windows XP laptops, samsung smartphone and 2012 macbook air), no issues with any of these devices. The problem started as soon as I updated to OS X 10.8.4 and later to 10.8.5. Have tried all the solutions listed in several of these forums. Changed channels to 1 & 6, no use. Mines is a netgear WNR2000v1 router. Have to be connected to ethernet cable all time, any help appreciated!

Note: In the event of testing wifi problem I upgraded the system to OS X 10.9 still no fix!

advitha

Well, I sold my Mini (which had wifi problems under ML) and got a 15" 2012 MBP and have had no wifi problems thus far. I also upgraded to Mavericks without issue. Maybe people with this problem should try Mavericks. You can always go back if you have a full ML backup (I had one just in case MV didn't deliver).

Wetsignal wrote:

Well, I sold my Mini (which had wifi problems under ML) and got a 15" 2012 MBP and have had no wifi problems thus far. I also upgraded to Mavericks without issue. Maybe people with this problem should try Mavericks. You can always go back if you have a full ML backup (I had one just in case MV didn't deliver).

I upgraded to Mavericks, which cured the wifi troubles. Unfortunately it introduced a major printing problem, but that's life I guess!

First, I need to make a correction in my first post: I have an Early 2008 15" MBP (not a Late 2008).

After trying the troubleshooting steps listed in my first post, I tried this KEXT solution by Rys Sommerfeldt, which is actually a solution for WiFi problems being caused by OS X Lion. It worked solidly for a few months, and then without warning my WiFi started having problems again (possibly after an Apple software update). Reinstalling the KEXT file did not permanently eliminate the WiFi problems, but some of you may want to try this solution to see if it works for you.

I upgraded to OS X Mavericks, but my WiFi problems continued.

I took my MBP to The Mac Store (different from the Apple Store) for repair. They tried replacing the Airport card, but it still wouldn't connect to their network. They now recommend sending it to Apple Repair for flat-rate service, costing $421.58 (this may include some Mac Store fees that I've already paid). Since the service cost is a flat rate, Apple will theoretically do whatever it takes to fix the problem no matter which parts need to be replaced.

I'm debating whether or not it's worth it to spend $422 fixing a 5-year-old MBP. Anybody have any experience with Apple's flat-rate service? Anyone have any new solutions (besides all of the router setting changes, forgetting preferred networks, etc. which haven't worked for me)?? Has anyone had any success taking their machine directly to the Apple Store?

I am also having this issue. I really do hope Apple fixes this because it is frustrating. Work working fine on Snow Leopard.

I found this temporary fix on another site (it still breaks later, but you can try the fix again).

Turn Wireless Off

Open Finder

Go to your HD > Library > Preferences > SystemConfiguration (Make a copy of this somewhere, e.g. Documents Folder (just incase))

Delete the files in the folder. (I had a CaptiveNetworkSupport folder, I DID NOT DELETE this). Only files

Empty recycle bin

Restart Machine

Test if it works. If not, you can restore the files from the copy you made.

Good Luck