WiFi unstable and slow Internet high speed

Hello world:

Recently, I am facing a problem of unstable wifi, slow speed of the internet of my macbook pro. I hope someone could help me with my problem.


Symptom:

Internet mainly speed just unstable using a wifi connection. (no problem with wifi connection self and my wifi suddenly grave would not be)

Example:

  • FaceTime with my friends and the connection would suddenly abandon or images & audio gets fuzzy.
  • Videos in online streaming and suddenly occurs buffering.
  • Download file of software update iPhone via iTunes, the speed is slow, he needed to take 2 h at the end and later on a window display "cannot download and check your internet connection".
  • Suddenly cannot open websites like site apple.com, google.com. Sometimes it will take more time to open Web sites.

Hardware and software:

MacBook Pro mid-2009, OS X EL Capitan 10.11.5

ISP: Cox, 50Mbps

Modem & router: Netgear N450

Test:

Turn off my wifi and connect my macbook pro with modem & router with cable, internet high speed is stable and fast. Internet speed download speed test result display is of around 60Mbps, download speed is around 8Mbps. And I tried streaming using the connection cable, there was no buffering.

I already tried the possible Solutions:

  • Restart the Macbook pro and restart Modem & router: will not work. I mean the internet will be very well at first, but later would be unstable again.
  • Reset Wireless Modem & router and change channels: useful, but not completely solve the problem. After you change the wireless channel, I tested my internet speed and the result showing 20-40Mbps (slower than 60mbps) speed download. Sometimes, the result will be like 6-8Mbps and sometimes it will be 60Mbps. If its unstable.
  • Wireless diagnosis: result indicates connection is good.
  • Called my ISP provider: they checked and said all right.


Other Questions & details:

  • The internet is ok for most of the time. But when all of a sudden I can't open site or I can't download and streaming & FaceTime at normal speed, his frustration.
  • I thought it might be related to my hardware since its an old macbook pro. I can't run Apple hardware test because I don't have the installation disc more and my macbook pro is very old. Is it a third party software that can perform the test hardware on mac?
  • My wifi used to be very stable and I don't have to worry. Just for these last two weeks.



I really appreciate your time and help! Looking forward to any reply!

Wi - FI connection drops

Connection Wi - Fi in OS X Yosemite problems

Wi - Fi in OS X Yosemite connection problems (2)

Connection Wi - Fi in OS X Yosemite problems (3)

WiFi potential temporary fix - Yosemite

Also try turning off Bluetooth.

WIFI AND BLUETOOTH FINALLY SOLVED, NOT REALLY - YOSEMITE 10.10

If your Wi - Fi source is capable of generating a 5 GHz Wi - Fi network, try that in order to avoid conflicts with Bluetooth.

Tags: Mac OS & System Software

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