Early 2011 model, A1278 / 2.3 GHz i5 or 2.7 GHz i7 processor.

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wifi weak signal problems

for the last weeks I have had a very weak wifi signal on my early 11 MBookPro

usually only at the first level in the signal strength bar

it will show full strength if shut off and turned back on for a few seconds, then down to the first bar.

I have version i7

does this have a replaceable wifi card? all other computers are not having this issue in our household.

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I got this identical machine in yesterday with intermittent wi-fi problems. I ran Symantec Endpoint Protection Anti-virus on it and found 15 infections. As of right now, I am currently no longer having wi-fi problems but if I run into something else on it today I will let you know. I also have a new wi-fi part that I will check out if I experience problems.

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Hey Skiebuster, in my opinion the cable or Airport/Bluetooth card itself would be the first place to start. I'd suggest opening up the rear case to expose the proper components, inspect all connections. Re-seat all ribbons and boot to test. If no improvement then I'd be willing to bet the Airport card itself has degraded over time and cannot receive the signal properly anymore.. Be aware of any sudden impacts/drops also, this would definitely cause hardware issues.

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I found one of the antenna cables was broken. When I pulled it off it and loving it it just fell over and out.

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That's excellent news skiebuster!!!

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skiebuster será eternamente grato(a).
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