One of the neat things about the Site Stats in WordPress is that it will tell you the Google search term someone used to successfully reach your page. I have always seen a ton of misspellings. For example someone typed in “anti virus” and it came up with this anti-virus article I wrote on Sophos. I wonder if there is a plugin that corrects for any misspelling in comments or google searches and helps match the appropriate search query?
Join the club. I had this problem with my own machine. I fixed it by reapplying the 10.6.6 combo update. Still if that doesn’t work, try what ctmurray said.
I have posted this list of things to try before, but I have updated recently. These are gleaned from reading many posts. It does not include the recent postings on reverting your Airport card driver to a 10.6.4. I strongly recommend everyone consider the first items which have been verified on this support board as solving the problem. Not all are required, each is listed because it alone solved the problem for that user(s). For some reason the updated OS is more sensitive to wifi interference – the same environment now is causing issues and does not on earlier versions, so please check out wifi interference as a option. Same with the wifi security, recent OS updates seem intolerant of WEP security.
All the fixes;
Fixes known to have solved the problem to posters on this board
1. Verify that there are no interfering signals (other WiFi units and portable phones or microwave ovens). Change channels regardless as you can’t “see” outside inference
2. Repair permissions – directions at http://support.apple.com/kb/ht1452. Use Onyx to repair to a more complete level.
3. If you have WEP security change your security to WPA or WPA2
4. Delete Keychain password http://docs.info.apple.com/article.html?path=Mac/10.6/en/9078.html or create a new password on your router
5. Network Prefs – Make sure Airport is the top service on the list. Consider edititng your wifi location (remove airport service and re-install) OR create a completely new location.
6. Look for conflicting out of date or beta software (Peer Guardian, Parallels and VMFusion known issues, Sophos antivirus)
7. Make a backup and then delete network preference files, Macintosh HD -> Library -> Preferences all plists starting with com.apple.internet, then move the System Preferences folder to your desktop (as a backup) and restart your computer.
8. Flush Cache files: Navigate to this folder:/System/Library/Caches, delete all the files in this folder.
9. Mac Mini – be sure bluetooth is enabled. Confirmed disabled BT with 10.6.5 results in WIFI timeouts.
Thing that are recommended, not yet confirmed
10. Reset your PRAM– directions at http://support.apple.com/kb/ht1379.
11. Reset your SMC – directions at http://support.apple.com/kb/ht3964. This was suggested by Small Dog Tech Tails for many problems
12. Create a new user for the computer and set up wifi for that user
13. Network Prefs – get a new DHCP lease
14. Network Prefs – disable Ipv6
15. Manually enter your ISP DNS IP addresses in Network Preference
Troubleshooting tips to help isolate the problem:
18. Grab a Console log and post the results here, look in your system.log (viewable via Applications->Utilities->Console)
19. Set up ping to continuously poll the router as a temporary fix
20. Report bug to Apple – http://developer.apple.com/bugreporter/
You have to sign up to be a “developer” but it is free.
16. Be sure your router firmware is up to date
17. Make sure there are no IP conflicts with other devices
How to keep your Windows machine virus free? « The Sole Witness. This guy would rather do some time-consuming steps instead of buying an anti-virus. While this suggestion will cut the chance of an infection it does not end it.
Free Antivirus Program For Mac Appletipzs Blog. Nice find! Great video as well.
Then go down to Klaus1 post in this Apple Discussions post. Great work! Or if you don’t want to click there-
there are conflicting ideas as to whether installing antivirus/antispyware software is needed or recommended. What do you recommend?
Only amongst developers trying to sell you next-to-useless anti-virus ware!
No viruses that can attack OS X have so far been detected ‘in the wild’, i.e. in anything other than laboratory conditions.
Do not be tricked by ‘scareware’ that attempts computer users to download fake anti-virus software that may itself be malware. More on that here:
It is possible, however, to pass on a Windows virus to another Windows user, for example through an email attachment. To prevent this all you need is the free anti-virus utility ClamXav, which you can download from:
(Note: ClamAV adds a new user group to your Mac. That makes it a little more difficult to remove than some apps. You’ll find an uninstaller link in ClamXav’s FAQ page online.)
However, the appearance of Trojans and other malware that can possibly infect a Mac seems to be growing, but is a completely different issue to viruses.
If you allow a Trojan to be installed, the user’s DNS records can be modified, redirecting incoming internet traffic through the attacker’s servers, where it can be hijacked and injected with malicious websites and pornographic advertisements. The trojan also installs a watchdog process that ensures the victim’s (that’s you!) DNS records stay modified on a minute-by-minute basis.
You can read more about how, for example, the OSX/DNSChanger Trojan works here:
SecureMac has introduced a free Trojan Detection Tool for Mac OS X. It’s available here:
The DNSChanger Removal Tool detects and removes spyware targeting Mac OS X and allows users to check to see if the trojan has been installed on their computer; if it has, the software helps to identify and remove the offending file. After a system reboot, the users’ DNS records will be repaired.
(Note that a 30 day trial version of MacScan can be downloaded free of charge from:
and this can perform a complete scan of your entire hard disk. After 30 days free trial the cost is $29.99. The full version permits you to scan selected files and folders only, as well as the entire hard disk. It will detect (and delete if you ask it to) all ‘tracker cookies’ that switch you to web sites you did not want to go to.)
A white paper has recently been published on the subject of Trojans by SubRosaSoft, available here:
Also, beware of MacSweeper:
MacSweeper is malware that misleads users by exaggerating reports about spyware, adware or viruses on their computer. It is the first known “rogue” application for the Mac OS X operating system. The software was discovered by F-Secure, a Finland based computer security software company on January 17, 2008
On June 23, 2008 this news reached Mac users:
More on Trojans on the Mac here:
This was published on July 25, 2008:
Attack code that exploits flaws in the net’s addressing system are starting to circulate online, say security experts.
The code could be a boon to phishing gangs who redirect web users to fake bank sites and steal login details.
In light of the news net firms are being urged to apply a fix for the loop-hole before attacks by hi-tech criminals become widespread.
Net security groups say there is anecdotal evidence that small scale attacks are already happening.
Further details here: http://news.bbc.co.uk/2/hi/technology/7525206.stm
A further development was the Koobface malware that can be picked up from Facebook (already a notorious site for malware, like many other ‘social networking’ sites), as reported here on December 9, 2008:
You can keep up to date, particularly about malware present in some downloadable pirated software, at the Securemac site:
There may be other ways of guarding against Trojans, viruses and general malware affecting the Mac, and alternatives will probably appear in the future. In the meantime the advice is: be careful where you go on the web and what you download!
If you think you may have acquired a Trojan, and you know its name, you can also locate it via the Terminal:
As to the recent ‘Conficker furore’ affecting Intel-powered computers, MacWorld recently had this to say:
Although any content that you download has the possibility of containing malicious software, practising a bit of care will generally keep you free from the consequences of anything like the DNSChanger trojan.
1. Avoid going to suspect and untrusted Web sites, especially p’orn’ography sites.
2. Check out what you are downloading. Mac OS X asks you for you administrator password to install applications for a reason! Only download media and applications from well-known and trusted Web sites. If you think you may have downloaded suspicious files, read the installer packages and make sure they are legit. If you cannot determine if the program you downloaded is infected, do a quick Internet search and see if any other users reported issues after installing a particular program.
3. Use an antivirus program like ClamXav. If you are in the habit of downloading a lot of media and other files, it may be well worth your while to run those files through an AV application.
4. Use Mac OS X’s built-in Firewalls and other security features.
5. Stop using LimeWire. LimeWire (and other peer-to-peer sharing applications) are hotbeds of potential software issues waiting to happen to your Mac. Everything from changing permissions to downloading trojans and other malicious software can be acquired from using these applications. Similar risks apply to using Facebook, Twitter, YouTube and similar sites which are prone to malicious hacking:http://news.bbc.co.uk/1/hi/technology/8420233.stm
6. Resist the temptation to download pirated software. After the release of iWork ’09 earlier this year, a Trojan was discovered circulating in pirated copies of Apple’s productivity suite of applications (as well as pirated copies of Adobe’s Photoshop CS4). Security professionals now believe that the botnet (from iServices) has become active. Although the potential damage range is projected to be minimal, an estimated 20,000 copies of the Trojan have been downloaded. SecureMac offer a simple and free tool for the removal of the iBotNet Trojan available here:
Last but not least, there is the potential for having your entire email contact list stolen for use for spamming: