Q: iMac intermittently drops Internet connection... kinda
Good evening everyone!
I have a mid-2011 iMac running on OS X 10.10.5. A few weeks ago, it started giving me ****. Most of the time, it works just fine. However, once in a while (it can vary from once in a weekend to multiple times a day), it drops the Internet connection... kinda. It is fairly complicated to explain and English is not my mother tongue, so bear with me. Randomly, some websites and domains will just become unaccessible. Reloading webpages does not get me anywhere. All it does is change the error message my browser throws at me. I also cannot access most video games requiring an online connection while my iMac is acting up. Strangely enough, I can still receive and send mails and use applications like Skype or uTorrent. Some websites will also still load. Most of the time, YouTube is completely functional. The same goes for Google's search function, although I cannot load search results when I click on them. Facebook tends to load with an extremely messed up display. I say "most" and "tend to" because it has happened a few times that even these websites would not load. Applications like Skype and Mail have never failed me up to this point. Skype's in-app home page does go down with the drops, though.
I mostly use Chrome, but the problem is also present on Safari. I have no extensions installed on either of these two browsers. The problem is not limited to my user. Other iMacs on the network do not experiment these drops. Rebooting my iMac seems to fix it temporarily. I have tried using other DNS. The issue is extremely intermittent and the length of the "drops" varies from a few seconds to an hour. Here are screenshots of the various errors Chrome gives me (there is no pattern, reload and a different one pops up). I know they are in French, but it's the best I can do. I am truly desperate for help as I will be taking online classes soon.
http://imgur.com/a/stWBI
Thanks in advance,
A lost Mac user ~
iMac, OS X Yosemite (10.10.5)
Posted on Apr 30, 2016 3:24 PM