Mountain lion wifi problems

Sorry Wetnoodle. Can't confirm.

i have MacBookPro5,4 2009 mid installed Mountain Lion. i have wifi problem at home. however in other places my wifi works perfectly.

Call me crazy, but I blame your home wifi setup.

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

I had wifi issues for almost a year on my late 2008 macbook pro (mountain lion). I Spoke with linksys, and netgear customer support many times, since I bought a new wifi router (went through many troubleshooting steps). Had Time Warner come out three times, the 3rd time for three hours (the guy tried everything he could think of including a new modem and I give him a lot of credit for his efforts).

Symptoms: Internet works fine for a minute then comes to a halt, and all other connected devices would also have timeout issues. Disconnect the macbook pro and all other devices would return to normal connection speeds.

Hearing that it might be a mountain lion issue, I finally upgraded to Mavericks, and my wifi internet connection has been working flawlessly for the passed 2 days now. Much relief....