I have a Macbook Pro, mid 2012 with Mountain Lion OS X (10.8.3)
Recently, my wi-fi has been on a very very poor connection, with long bouts of disconnection/slow connection. It'l be working for 2 minutes or so at a normal rate, and then slow down considerably, not load pages, or tell me I have no internet connection
This has nothing to do with the internet connection itself, as someone else living with me uses the wifi on their laptop just fine.
In detail, most times Chrome tells me there is a DNS look up problem/ the Network preferences tab tells me I have no internet connection or no IP address. sometimes, the wifi looks perfectly fine but my internet will lag really slowly
I have tried the following:
renewed the DHCP license
deleted System Configuration
deleted history of all browsers
deleted internet profiles
reset/recovered my computer
I'm desperate, as it seems nothing is working
the person at the Genius Bar said it isn't likely to be a hardware/wifi card problem as my wifi still searches/connects.
Thanks for any help!
Wifi problems seem to crop up a lot on here and unfortunately there doesn't seem to be a 'one fix' solution.
However, sometimes any one of the following can help although, unfortunately, not always - in no particular order:
Also take a look at this link and the links within the article for other ideas. They mainly reference Lion, but still seem to be relevant to Mountain Lion:
...and this link: