MacBook slow with WiFi "N"

Hi,
I have a serious problem with my MacBook. I explain my home configuration, so U can have all the details of my home system in mind:
I have a wired 1Gb network, all the PC's and Mac's are connected to the Lan over ethernet cable. I have also a LaCie Network 2 Tb HD with all multimedia content linked to the LAN. I have also two WiFi AP's one from DLink and other the Airport Express both "g" only
Recently I buy a Linksys DSL WiFi Router (WAG325N), so I can sync my MacBook with my iMac without using the Ethernet cable. When I use the MacBook using the etehrnet (1 Gb) cable all works ok. When I connect using one WiFi "G" Access Point all works ok, the sync is slow because the amount of data I sync, but when I open one directory of my Network drive I can play any movie or have the list of all files in the current dir inmediatly.
But my big surprise was, whe I setup myy new WiFi "N" router and I connect with my MacBook, Internet works find, the problems start when I tray to sync or even something much simpler, open a network directory in my NetDrive.
When I acces to one of the dir the list of the files inside appears very slowly, if I click in a movie it doesn't start right away (as it happend with the ethernet or WiFi G conection) my MacBook doesn't respond and I must to whait 15 minutes to see the movie start, but only the first frame then stoped again. I can't even make a copy of a single text file from any dir inside my network to my MacBook.
I see that when I using an "N" connection, the bandwith is less than when I use the G one, it make no sense, the Network Utility show me a connection of 130 Mb but start to give me Recv errors (first time ever), When I change to an AP with WiFi "G" I have no problems and the MacBook start to work with no problems and to reproduce the film perfectly.
I try with my iMac to unplug the ethernet and make the same test using the WiFi "N" AP and it works great, no slow charge of the contents of the dir and quick access to the contens inside.
I reinstall the Leopard with a brand new installation, and I have all updates posiibles, and the MacBook don't wanna use an N connection. I try shuting down the rest of AP's changing channels, disconecting the phone base station, I think I test all, and my iMac it really use the WiFi "N", but my MacBook wanna be and old school machine
Any help???
Ivan.-

Several ideas...
If you haven't done so, try Starting up in Safe Mode
Once you see the Desktop go to the Apple menu > Restart
Safe Mode deletes some system caches that may help.
Since you are running v10.5 you could do an archive and install > Installing Mac OS X 10.5 Leopard
That places a new System Folder on the drive without having to do a complete erase and reinstall.
Good that you backup your data !

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  • My MacBook works fine wifi everywhere except for home.  The home wifi is fine with the iPad and iPhone.  How can I fix my MacBook?

    My MacBook works fine wifi everywhere except for home.  The home wifi is fine with the iPad and iPhone, so I assume the issue is with my computer.  My computer works fine on wifi networks elsewhere.  The only problem is at home.
    The computer "connects to the wifi," but browsers and other internet-dependent software do not work.  Curiously, if I connect the ethernet cord that doesn't work either. Usually if I reset the modem to factory settings twice (for some reason, once doesn't do the trick), my computer will fully connect to the wifi.  However, in a few days, it goes back to not working.
    Today, resetting the modem didn't work. I could only get wifi connection while in safe mode, but not in normal mode.  So, the issue seems to be software not hardware. I have tried starting new accounts in normal mode, but those also don't connect properly to internet.
    Not sure if this is relevant, but this problem started when my building switched internet providers from ComHem to Telia (I live in Sweden).
    What do you recommend I do?
    Thanks!
    PS I use Snow Leopard: OS 10.6.8

    Not unless the modem is causing a problem.
    What you want to do is get it to work reliably over Ethernet first, then tackle wifi. Power off the modem. On your macbook, delete the Ethernet configuration and the Wifi configuration. Power up the modem, then connect the mac via Ethernet. Create the new Ethernet configuration and see if you can connect.

  • My wife and I both have the iphone and we use my macbook pro with iTunes to sync our ipods. When I do something on my iPhone it shows on hers. How do I set up her a seperate iTunes acct on my mac so she can operate independent of me?

    My wife and I both have the iphone and we use my macbook pro with iTunes to sync our ipods. When I do something on my iPhone it shows on hers. How do I set up her a seperate iTunes acct on my mac so she can operate independent of me?

    There's info here on setting up separate libraries and user accounts. You won't have to reload (or re-import) all the music, just copy it.
    The reason I suggest separate accounts on the Mac is because if you have the two libraries under the same user account, iTunes will also open the last library that was open in that account, and you'll always have to be mindful of which library that is. If you open iTunes and find it's not your library, you'll have quit, relaunch holding the option key and select the other library.
    No, you won't have to log in and out of the Mac. (If I'm understanding your question here.) Multiple accounts can be logged in at the same time. And with fast user switching, you can toggle between user accounts.
    I'll admit that maintaining the two libraries gets a little tricky, because if you share all the same music, you'll have to add it to one and update the other. (That won't happen automatically.) But I think Home Sharing makes this much easier to do.
    Hope that helps!

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