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Airport card and connecting cable have been replaced but still have very weak or no reception. If the MBP is right next to the AP, some reception is possible. Would like to try replacing the antenna. Is there a guide to follow? Thank you.
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The antenna is in the display. Check you cables to see if you can discern any damage about the hinge where they lead from the card into the display.
See step #7 of this guide:
MacBook Pro 15" Unibody Early 2011 AirPort/Bluetooth Board Replacement
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The antenna leads entering the hinge cover all look to be in good shape. It looks like getting to the antenna would involve removing the display. How risky is that and are you aware of a guide for doing so? Thanks very much for your help.
First thing to do is run a virus check (this is a known virus hitting the wi-fi). A good Paid For one is best. I use Symantec Endpoint protection.
Followed your advice. Anti virus scan ran for just over 3 hours and found one problematic file (Adobe Flash). No change in wifi after restart. I've also tried switching wifi channels. Other suggestions will be appreciated.
As you know the connector are tricky, I'd make sure they are on correctly. Jiggle the cable a little on each wire and see if they pop off. Your machine also has an ethernet port. I would hook up a hardwire ethernet cable to your modem and see if it ratifies your issue.
We are thinking alike: I've checked the antenna cables and ribbon connector several times to make sure they're seated and secure. Since wifi is not reliable, I have been using ethernet to connect to the home network and Internet. Thanks for your help and let me know of any other thoughts you may have. Sure don't like the idea of removing the display to replace the antenna.
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