MacBook cannot connect to some wifi

[majoorpa]

I am a new Mac user with a new Mac book pro. The Mac was connecting to wifi until today. Today I added another wifi connection through mifi hauwaei modem. Since then I cannot connect to my old wifi access point. It connects but not getting the Internet or get to the router using 192.168.2.1. I can still connect to my mifi. My iPhone, iPad and other laptops can connect to my old access point with out any issues. I use zyxel router as my old access point. If anybody have experienced similar issues? Or any solutions please help.

 

[Riverrun]

Hi Majoorpa,

I don't think this is a very big problem. I have a MacBook Pro and ocasionally, I have the same issue.

It comes down to DNS, usually. Your DNS server has changed because logged in to another service.

System Preferences> Network>Advanced. Click on the DNS tab and add the old server address.

If you don't know the address, your ISP Service people will tell you.

 

[majoorpa]

Adding dns did not solve the problem

Thanks for responding. Adding DNS to network preferences did not solve the problem. Any help would be very much appreciated.

 

[majoorpa]

Solved

I have no idea after all these days, it is solved now I am able to access my wifi. The networking diagnostics queried whether to change the settings or not when I opened up my networking diagnostics for which I clicked yes. Then it started working. I wonder why networking diagnostics ask that in the first place several times before when I tried it. Anyway it seems to working alright now and I am quite happy.

 

[Riverrun]

Ha! Glad you got it working. I imagine the problem was DNS related and that Mac restored a valid DNS address.

Should you ever run into the problem again, try this:

1. From the Finder, select the Go menu -> Go to Folder
2. type: /Library/Preferences/SystemConfiguration/
3. Press enter
4. Search for the following file: com.apple.airport.preferences.plist and when it appears move it to the Desktop
5. Reboot and Mac will create a new "com.apple.airport.preferences.plist" in the SystemConfiguration folder.

Turn on Airport and away you go.