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wifi keeps disconnecting x220

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EvoT61
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Posts: 89
Joined: Tue Mar 11, 2014 2:44 am
Location: London, UK

wifi keeps disconnecting x220

#1 Post by EvoT61 » Tue Dec 08, 2015 2:09 am

Hi linuxpad`ers , im having an issue with x220 intels wifi card on linux ( arch ) ive checked arch wiki for thinkpad and followed instructions how to disable n for my wifi , but still it does not help ... and its hard to get any signal. i was booting from live usb few distros and it takes ages to connect but when it does - it looses signal within 15-30 min. so now im in the pursuit of discovery of what the heck is going on . Is it antena? wires ? or actual wifi card is on the last leg ?
IBM ThinkPad
T61 C2D-T8300 + FingerPrint.
ArchLinux ThinkPad
X220 i5-3320M

axur-delmeria
Senior ThinkPadder
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Posts: 2000
Joined: Mon May 28, 2012 5:49 am
Location: Metro Manila, Philippines

Re: wifi keeps disconnecting x220

#2 Post by axur-delmeria » Tue Dec 08, 2015 3:59 am

How's the wifi signal strength?
Daily driver: X220 4291-C91 i7-2620M

Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
:cry:

evening_hunger
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Joined: Thu Nov 26, 2015 2:55 pm
Location: Normandy, France

Re: wifi keeps disconnecting x220

#3 Post by evening_hunger » Tue Dec 08, 2015 4:22 am

Yes signal strength might pose a problem, especially - from my experience - with those networks requiring funky encryption. For example eduroam-type networks, popular in universites around Europe, is WPA-EAP/MSCHAPV2 ecrypted, and whenever signal strength falls below 50% (-70dBm maybe) in disconnects saying that it cannot authenticate.

That's not to say your wifi card is immortal, though I've never seen any of them (in x220) needing replacement. Maybe an external wifi dongle would be a good tester.
x320/i7-2620M/8GB/256gb.ssd/FHD13.3''IPS/debian_testing (main driver)
x230/i5/8GB/500gb.hdd+256gb.m2ssd/IPS/debian_stable+win7 (better half)

EvoT61
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Posts: 89
Joined: Tue Mar 11, 2014 2:44 am
Location: London, UK

Re: wifi keeps disconnecting x220

#4 Post by EvoT61 » Tue Dec 08, 2015 4:28 am

im in uk and using bt hotspots no WPA/WPA2/WEP ( no broadband provider atm) so signal jumps and its bad when windy or rainy...and signal usually below 50% , but t230 with this same card holds signal a bit better and longer but still disconnects ...and allways disconnetcs when i change the room .
IBM ThinkPad
T61 C2D-T8300 + FingerPrint.
ArchLinux ThinkPad
X220 i5-3320M

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