Mac can't search a particular wifi network

My Macbook Pro is unable to search my office wifi network. The problem I am facing is happening with particularly this network.
It can connect to all other networks in range, like I have connected my iPhone via personal hotspot. On the other hand, all other devices can search my office network too. I am facing this issue since last 2 days. Does it have to do anything with the upgradation to OS X Yosemite ?
I have tried everything with my modem. I am tried of searching for this issue online, but it seems people haven't really faced this issue as yet.
PS : This is affecting my work really bad, as I am restricted to my iPhone's tethered 3G network, that's really slow.
Please, help me out of it.
MacBook Pro (15-inch, Mid 2010)
OS X Yosemite
Version 10.10 (14A389)
Processor :     2.53 GHz Intel Core i5
Memory    :     4 GB 1067 MHz DDR3
Storage    :     500 GB
T. I. A.
Anuj Goel
[email protected]

This discussion area is for apple routers actually.. and although it gives lots of problems it doesn't tend to not appear at all..
You are posting in the wrong area.. since this is a laptop error or more likely a purely Yosemite issue..
So lets see what we can do.. Not all wireless is created equal.
Beetel (ADSL2 + Router)
Please set the wireless in this router to a different name, short, no spaces and pure alphanumeric.... set to a fixed wireless channel eg.. 8 or 9 for 2.4ghz and turn off all wireless security. Especially you must not hide the wireless.. this is just a test to run for a couple of minutes.. then you can change the name and security back again.. it is to prove compatibility. This reduces the wireless to its lowest common denominator and if it cannot connect on these settings it never will.
Reboot the Mac and scan for wireless again.. no luck I would say the Mac wireless is simply unable to connect to the particular wireless chip type in the Beetel.. The solution is to plug an Apple router into the beetel and use it in bridge mode.. and create a wireless network.. then the Mac will have less (cannot say No issues).

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Hi,
I am facing a problem with OS X 10.9.1 (Mavericks) wifi connection.
I use a Time Capsule as a base station and 13" Macbook Air (2012). The base station is connected to the internet through a PPOE connection.
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=====================
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You may have many apps open which can possibly cause the slowdown and possibly the loss of wifi. In iOS 4-6 double tap your Home button & at the bottom of the screen you will see the icons of all open apps. Close those you are not using by pressing on an icon until all icons wiggle - then tap the minus sign. For iOS 7 users, there’s an easy way to see which apps are open in order to close them. By double-tapping the home button on your iPhone or iPad, the new multitasking feature in iOS 7 shows full page previews of all your open apps. Simply scroll horizontally to see all your apps, and close the apps with a simple flick towards the top of the screen.
Wi-Fi or Bluetooth settings grayed out or dim
http://support.apple.com/kb/TS1559
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
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Why can't I select preferred wifi networks

why can't I select preferred wifi networks

I don't know how to block the other wireless access points to show on the list, but from what you said, you want to let it connect to one of your preferred network whenever one is available, connect it automatically.
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copy what it returned.
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Explain a little bit.
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Why can I see other peoples' WiFi networks but not my own?

This is a problem that started when an engineer came to replace our TV's set top box as well as our router a few weeks ago. I'll run through everything in quick bullet-point form...
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I, on the other hand, can not see or connect to our network at all. However, I am able to see other WiFi networks.
-Days of rebooting and replugging the router, my iMac and AirPort card prove fruitless.
-Throughout all this, the router is sat on top of the set top box, which is sat on top of the TV. I move the router down so its sat next to the TV and a plant. I'm able to see and connect to our network with no issues.
-Three weeks later, the problem has returned. I can't see our network but my flatmates aren't affected.
-Thinking it may just be poor reception in my room, I set up my Mac in the front room a couple of feet away from the router. I detect other networks, but still not my own.
-More unplugging and rebooting later, hallelujah, I can see and connect to our network. I take the Mac back to my room and try from there. No luck. The familiar XBoxLive8973498374, BT-HomeHub8934897, TalkTalk439847 (etc) and Sofia networks come up in my networks list as usual but not our own SpeedTouch459873439847 (etc).
We have a Thomson ST 585 router and I have an iMac G4 with the original AirPort card. Short of buying a new router, does anyone have any ideas as to why this is happening and how to fix it?

This is what MacStumbler sees when my Mac is situated a couple of feet from the router in the front room:
http://farm4.static.flickr.com/3051/2308676274_00f5eba51c.jpg?v=0
Our network is the one labelled SpeedTouch. As you can see, my AirPort antenna seems to be working perfectly. However, the SpeedTouch connection (and only the Speedtouch connection) would be lost intermittently for several minutes at a time.
This is what MacStumbler sees when my Mac is in my room:
http://farm4.static.flickr.com/3184/2308733380_dcdc2faccd.jpg?v=0
The SpeedTouch signal strength is obviously not as strong but still reasonable. I don't seem to have any issues anymore; I can see, connect and stay connected to our network with no real problem - but I haven't changed any settings on the router.

I'm trying to extend my wifi network with time capsule but it can't find the existing wifi network

I'm trying to extend my wifi network with time capsule but it can't find the existing BT wifi network even though it is there with a good signal strength. The Time Capsule is connected to a Netgear router via ethernet.

You will need to start over on the setup of the Time Capsule as follows:
Disconnect any Ethernet cables that might be connected to the Time Capsule, but leave it powered on
Hold in the reset button on the back of the Time Capsule for 8-10 seconds and release. The reset button is located next to the AC power socket.
Allow a full minute for the Time Capsule to restart to a slow, blinking amber light
Connect the Ethernet cable from a LAN <--> port on the Netgear to the WAN "O" port on the Time Capsule. The Ethernet cable must remain connected at all times.
Click the WiFi icon at the top of the Mac's screen
Look for a setting of New AirPort Base Station
Click on Time Capsule
The example below shows an AirPort Express. You will see Time Capsule on your screen.
That will get the setup wizard going. It will take a minute to analyze the settings, then display a screen that looks like this, except you will see a picture of the Time Capsule
Network Name..........Type in the exact name that the Netgear wireless is using
Base Station.............Type in a name that you want to call the Time Capsule. Use something short and simple. Mine is TC, for example
Password..................Type in the exact password that the Netgear wireless requires
Verify.........................Verify the Password again
Click Next
The setup wizard will configure everything for you automatically. When you see the message of Setup Complete, click Done.
That's it. Now you have one big "extended" network. Technically, this is called a "roaming" network.

Mac can't search a particular wifi network

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