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Blue Screen Again
Posts: 4
Registered: ‎03-02-2013
Location: Madison
Views: 2,988
Message 1 of 4

Y400 wifi issues

My Y400 will keep dropping the wifi and not allowing me to reconnect without restarting the computer first. It happens about once every 4 hours. Anyone else having similar problems and any ideas on a fix?




Social Support Agent
Social Support Agent
Posts: 5,822
Registered: ‎02-11-2012
Location: PH
Views: 2,945
Message 2 of 4

Re: Y400 wifi issues

hi DapDunkerley,


Can you try to:

1. Update your wireless card driver via the lenovo support site

2. Check If you have a Realtek RTL8723A wireless adapter under the Device Manager and apply this fix as it similar to your issue.

3. Open a command prompt, type ping -t If you get a "request timed out", check this article.


If the wifi still disconnects, try to boot into Safe Mode with Networking and check if the issue persists.



Let me know your findings



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Paper Tape
Posts: 3
Registered: ‎05-16-2013
Location: San Francisco
Views: 2,224
Message 3 of 4

Re: Y400 wifi issues

Hi, I have a similar issue where sometimes when I wake my laptop (Y400) from sleep, it will say "limited connection, unable to connect" with a yellow hazard sign on the wifi icon. I have to then disable my wireless adapter than enable it for my internet to work again, and sometimes I will have to reboot all together. The wireless adapter in my laptop is the Intel Centrino Wireless-N 2230 for which I have checked the support site for updates, but to no avail.


The router is a D-link WBR-2310 with WEP security. No other device on the network has similar problems.


Any help is appreciated, thanks.

What's DOS?
Posts: 1
Registered: ‎10-31-2013
Location: Labrador
Views: 2,183
Message 4 of 4

Re: Y400 wifi issues

I have the same problem. when I was doing some research on this comp before i bought it direct from lenovo. i knew the wifi card had issues. So I thought to myself, no biggie, ill just swap the little bugger out with a bigger,stronger,faster wifi card... after some more research. after I already had the y400 in my hands. i come to find that. only a wifi card with some sorta FRU number on it will work. and im not saying they dont sell them, but i cant seem to find any. having that said. when i bought this computer, it was on sale for close to half off. so ive been thinking it was a lenovo flop that they were trying to push, only to find out thatbit had a SUCKER inside called a wifi card. and with little to no way of fixing it. well I hope somebody on the lenovo site will make me feel likeva stupid ass and point to a simple solution. what I want is a better wifi card. Ill settle with a driver for the one that I got.

thank you all for your time... thats if anybody at lenovo cares

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