03-22-2014 09:47 PM - edited 03-23-2014 11:45 AM
Dear Lenovo Support and all others,
I am posting this in hope that someone can help with my problem and also to share my unpleasant experience with a new Lenovo product.
Lenovo Thinkpad X1 Carbon
OS: Windows 7 Pro 64bit
Purchase date: 27th February 2014
Since the first day I purchased the system, I have been having an issue with my wireless connection:
1. I am unable to reliably get a wireless connection to wireless access points (e.g. free wifi coffee outlets or malls) and personal mobile hotspots (mobile phone hotspots). It constantly says "LIMITED CONNECTIVITY". In other words, I cannot get internet access. Even when it does connect to the network and get internet access, there is a tendency for the connection to drop back to "LIMITED CONNECTIVITY".
The only time I can get a reliable connection is when I am connected to my home wireless router. The system does not seem to have problems on home wifi networks. Since the problem seems limited to wireless access points and hotspots, I believe its a hardware/software problem.
Please note that I have other wireless devices (laptops and mobile phones) that can connect to the same networks that I am trying to connect to and have no issues.
I have tested the networks with my friends' wireless devices as well and they have no issues accessing the internet so I am fairly certain that there is no issue with the networks themselves.
2. I have already called in twice and been given advice on both occasions but the problem still persist. I have updated all drivers, uninstalled and reinstalled and updated the BIOS for the system and also performed a system recovery but nothing has worked so far.
I have also been advised that I need to go down to the Lenovo service center to have my laptop checked out by the technicians and that there MIGHT be a firmware upgrade for the wireless card itself.
03-22-2014 11:04 PM - edited 03-22-2014 11:05 PM
No problem. I've tried everything support has advised and from what I have researched but to no avail.
I will be going down to the service center tomorrow. I might insist on a completely new system since I have had this problem since day one. The system is less than a month old.
Hopefully I can get a new system and hopefully there are no problems with it.
03-26-2014 10:13 AM
I can verify the same with 2 brand new X1 Carbon 20A7 models. To confirm, they both have the Intel AC card and both have VERY picky fits about what WiFi AP's they will connect to and which they won't. I absolutey cannot tether off the WiFI hotspot on my iPhone 5. I've had limited/occasional success forcing the WLAN card into G-only mode via Device Manager, but this doesn't always work.
Some hotspots it has absolutely no trouble with, others exhibit the same behavior as you describe: Connect, maybe get an IP address (maybe not) and then ultimately fail to route any traffic. I suspect lousy drivers or lousy firmware.
03-26-2014 11:02 AM - edited 03-27-2014 01:14 AM
Thanks for the confirmation.
Just to let you know, I went to the service centre here and they tested the device again. No connections to iPhones hotspots on 4g. Interestingly, they managed to connect to iPhones that were on 3G. I'm assuming those were probably pre iPhone 5. and now that u mention, those 3G connections were on 802.11g not n. Also tested on my friend's galaxy s4 with no problems whatsoever.
They have escalated the matter to Lenovo HQ and asked me for my iPhone OS version and firmware version.
I'm also waiting for a 1 for 1 escalation to go through and am using USB tethering for the moment. But if it's a hardware/software issue I don't know what a new set will fix.
Will update again.
03-28-2014 04:26 AM
i also have the same error with my brand 20A08 X1 Carbon. I cannot connect to a iphone 5 / iphone 5S personal hotspot. But setted up with my iPad 4 seems working. Strange behaviour.
connecting to a free airport wlan hotspot or a telekom hotspot is working.
03-28-2014 05:41 AM - edited 03-28-2014 05:44 AM
there is an issue bugged driver or even card firmware related. Intel confirmed that. Wait some time for the new release.
For the test purpose only disable 2,4 ghz band support and switch to 5 ghz. N-band seems unstable so switch to G-band. As the Linux users report the same issue it's firmware bug basically.
Do it well, worse becomes itself
03-28-2014 03:11 PM
Do it well, worse becomes itself