I live in the UK and have a neighbour with a WIFI router wrongly configured for TW (Taiwan) – My Macbook then cannot see my Wireless N network as the channel is not one used in TW. Hence, if you have a neighbour with a wrongly configured country code then your machine will only listen on the frequencies for that country. The problem is 802.11d – when your WIFI wakes from sleep the first thing it does is to listen for a wireless network beacon signal to determine what country it is in and then it restricts it WIFI radio to _only_ listen on the frequencies for the country detected. I suspect that many people who live in built up areas with many wireless networks around them may also be suffering from this too. I have been suffering from WIFI re-connection problems when waking my MacBook Air running both Lion and Mountain Lion, but I have finally worked out what has been causing the problem. The macs have had this type of issues for years and years just do a google search, it’s like a cancer. Since my Macbook Pro is from 2006, running 10.6.8, my next computer will likely be a PC. So all other computers in the house connect easily, So I will try a direct hard wired connection to see if that works, but I can’t understand why this is such an issue especially with Macs. I did not empty the trash in the meantime. plsit, Network interfaces, airport and another) for network in the preferences. So I have been running for 2.5 years with no preference files ( Preference. I had noticed they were missing from preferences so I put them back in from the trash. Everyone says the computer generates new plist files most every time you start an application… plist files were not generated when trying to connect via WIFI. I don’t understand why trying to connect that new. Never put them back in preferences until yesterday. ![]() ![]() I had a similar problem 2.5 years ago and had put the network related. Very recently the connectivity became very problematic requiring troubleshooting. My internet connection has been working but deteriorating over the past couple of months with out changing any settings knowingly. So I will get a new battery hopefully today and remove that as a variable.Īny help by comrades on this site appreciated. I also add that the battery in this MBpro (vintage 2006 model 1,10) has been bad for at least a year and has zero charge. I am thinking now that the problem is more with the network/ router setting for this individual computer out of a total of 5 in the house that perform. So a few additional items to help characterize this strange behavior with the network connection. This I noted yesterday after a full day of work and then it happened this morning (letting me add to the drama that I describe here. Oddly enough, when the computer sits idle for several hours or all night I click the mouse ( not a restart) the screen shows and it logs right on to the wireless/airportĪnd the connect thing shows a full strength connection !! This was, to me a surprise, the files in the system folder carried a fresh date. Were residing in the system folder but were not in the preferences folder in the home/user folder. Let us know if this worked for you, or if you have any other helpful wifi troubleshooting tips.Īfter a bit of tinkering, I discovered the four missing files: The wi-fi connection should now work as expected unless there’s a deeper problem, whether it’s a compatibility issue with the router (often resolved by this DHCP and MTU fix), a problem the router itself, or something as simple as network interference ( here’s how to check connection strength and interference issues), which can often be resolved by reconfiguring a routers physical arrangement or changing it’s broadcast channel. This process forces OS X to create all new preference files for wireless networking, which can be an effective troubleshooting strategy if the wi-fi problems began after upgrading versions of Mac OS X and even installing incremental system updates. ![]()
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