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7 Posts

11-27-2012

New Caledonia

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Re: yoga 13 wifi issues

2012-11-29, 15:13 PM

I also downloaded the Oct. 23 driver for the Wi-fi LAN last night.  I didn't have time to run any extensive tests, but I can say that I was able to stream Hulu in HD whereas before, I couldn't even remote desktop into my work machine.  I'll do more tests tonight.

 

I am pretty certain that this issue did not exist when I first purchased the laptop, so I think it may be something up with an update that was installed.

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7 Posts

11-27-2012

New Caledonia

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Re: yoga 13 wifi issues

2012-11-29, 22:52 PM

The latest driver did not fix the problem.  I'm beyond fed up and will be complaining to Lenovo tonight.

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103 Posts

11-17-2012

USA

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Re: yoga 13 wifi issues

2012-11-30, 0:24 AM
I am sure Lenovo will be able to help us with this issue. It is a new device with a new OS, so we have to give them some time.
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7 Posts

11-27-2012

New Caledonia

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Re: yoga 13 wifi issues

2012-11-30, 14:33 PM

So I did some more hair pulling last night as this is on the verge of making me go nuts.  From what I can tell, it seems like the Yoga's wifi is extremely weak.  If I'm within 10-15 feet of the router, I seem to be getting decent connectivity at about 58Mbps to the router itself.  This is using Wireless N (so still crappy for Wireless N).  When I'm upstairs, it drops to the 20s and teens, which makes it very sporadic and impossible to use.  So I turned the wifi on in my second router upstairs and now I have two points of connection.  So far, so good.  I'm at least able to get a stable connection.  But I'm sitting about 5 feet from the router right now.  This is terrible either way, but at least a workaround for the moment...

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56 Posts

10-20-2012

Ireland

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Re: yoga 13 wifi issues

2012-11-30, 14:44 PM
I haven't had any problems with wifi - might be down to the fact that I have a very stable router. It's a linksys wrt54g running custom firmware - Tomato. I've tried a few N routers on tomato and ddwrt but they've never performed as well.
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8 Posts

12-01-2012

Georgia

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Re: yoga 13 wifi issues

2012-12-01, 3:43 AM

the start of this thread says the issue has been solved.  Has the issue been solved?  

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4 Posts

12-01-2012

USA

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Re: yoga 13 wifi issues

2012-12-01, 19:18 PM

Not for me.  Although it's getting interesting.


Three weeks ago when new, download speed was an even 140 to 160 KBytes/sec at around 40 feet from router with my body in between.  Same with hands on front edge (over antennae).  Same with no obstruction. Same when 6 feet from router.   Same whether using SpeedTest.net or file transer on LAN.


Occasionally download speed would be the more expected range of 1600 to 2200 KBytes/sec.
I did notice that using the microwave (30 feet away in another room) stopped all internet while it was on.  But always returned to the slow speed range afterward.


I also noticed that when getting the lower speed, it was very even as if throttled.


Switching from mixed G/N transmission to just G or just N gave me the higher speeds (along with updating drivers).  Download speed has been consistently high for a week or two now.  Upload speed has always been around 400 to 500 KBytes/sec.


So this morning, to verify all was solved, I ran a speed test and got the higher speeds.  I then ran a speed test while the microwave was on.  Downloads were stopped while the microwave was on but then resumed at 150 KBytes/sec.

 
Finally, when scanning for wireless networks, the Yoga sees networks as well as my sensitive Sony Vaio did including a neighbor 1/4 mile away.


Let me propose something and see if it is supported by other's experience.

  • Our WiFi hardware might be more capable than we've credited it.
  • Or possibly it's noise rejection is less capable than normal.
  • That there is an adaptive strategy somewhere when the quality of reception is bad that involves throttling.  And throttling is maintained for a period of time.

I would be surprised at this but that is the way it is behaving.  If so, would it be in the Yoga's Realtek driver, Windows 8, or the router (Linksys with DD-WRT)?  My efforts to isolate have been restarting the laptop, "release" and "renew" the Wifi connection, and restart the router.  Still at 150 KBytes/sec.  Next time I'm at high speed, I'll create a Restore Point, "microwave" myself back to the lower speed and see if the system restore removes the (hypothetical) throttle?


Does this match others' experience and make sense to those more knowledgable on WiFi networking?  It would be good news for all of us if this is a software/driver issue.

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103 Posts

11-17-2012

USA

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Re: yoga 13 wifi issues

2012-12-02, 2:17 AM

I would say you can rule out the router as the cause because I have a Netgear WNDR3700 version 1 with the latest firmwear, and I am having the same wireless issue. It did help when I changed the wireless from 300Mbps to 150Mbps.

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8 Posts

12-02-2012

United States

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Re: yoga 13 wifi issues

2012-12-02, 10:22 AM
anyone figure out if it is possible to replace the wifi card? Does lenovo have a whitelist for this card and will it take mpcie?
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57 Posts

10-26-2012

North Carolina

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  • Message 60 of 977

Re: yoga 13 wifi issues

2012-12-02, 10:30 AM

No, it's a realtek card with proprietary connector:

 

Link to picture

 

Moderator note; picture(s) totalling >50K converted to link(s) Forum Rules

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