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lando786
Fanfold Paper
Posts: 5
Registered: ‎12-29-2018
Location: US
Views: 621
Message 1 of 10

New Yoga C930 dropping wifi

New YOGA C93013IKB with Bios 8GCN30WW. I have evertyhing up to date, but my wifi connection seems to randomly drop for about 10 seconds every now and then. Looking at the event viewer logs through my device manager I see an error message at the time of the wifi drops.

 

Here is the event message I can see in the device manager

 

 

Device PCI\VEN_8086&DEV_2526&SUBSYS_00148086&REV_29\4&11c95301&0&00E4 had a problem starting.

Driver Name: oem46.inf
Class Guid: {4D36E972-E325-11CE-BFC1-08002BE10318}
Service: Netwtw06
Lower Filters:
Upper Filters: vwifibus
Problem: 0x15
Problem Status: 0x0

 

Do I have a faulty wifi module or is this something an update/settings change can fix? Looking through the forums with other post having wifi drops, it's recommended to uncheck a box in the power management tab but I don't even have that tab available in my wifi device. This is getting pretty annoying for something this expensive.

 

 

Guru
Posts: 1,137
Registered: ‎12-13-2016
Location: US
Views: 544
Message 2 of 10

Re: New Yoga C930 dropping wifi

Don't have a C930, but I see nobody's responding, so I'm going to take a guess and assume it has a Qualcomm Atheros WiFi card. Those can be a little tricky to configure, but it is possible. A lot of routers seem to have issues if the Qualcomm goes into power-saving mode. In my experience, the card also has fits with competing WiFi signals, like from a neighbor's router or some other hub. 

 

You can (or should be able to) get to the WiFi power settings this way:

 

Windows Key > Settings (gear icon) > System > Power and Sleep > Additional Power Settings > Change Plan Settings > Change Advanced Power Settings >  Expand "Wireless Adapter Settings" > expand "Power saving mode" and change both to "maximum performance." 

 

You can also get to the Roaming Aggressiveness setting through Device Manager. Find the Qualcomm device and right click. Choose properties. The roaming aggressiveness should be in the Advanced tab. Mine is set to 3.

 

It's also worthwhile to download a program such as WiFi Scanner to see what's around you. In my case, my laptop is actually closer to my neighbor's router than mine. It'd dump my router to try to log on to his, then come back. So, I finally stuck my router on the least-used 5Ghz channel and gave different SSIDs to each band. Between that an the Roaming setting, it sticks to my router all the time. 

 

All else fails, you can yank the Qualcomm and install an Intel chip. Check the Lenovo whitelist for your device before doing that, though. 

 

Let us know how you get on...


____________________________________
I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo. I love beer.
lando786
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Posts: 5
Registered: ‎12-29-2018
Location: US
Views: 497
Message 3 of 10

Re: New Yoga C930 dropping wifi

This laptop acutally has an intel chip. Device manager lists a Intel Wireless-AC 9260. Roaming aggressiveness is set to 3 by default. But the power options in settings is not present. I also can't set anything from the Intel Proset Wireless tools. It just has the import wireless profile option. I configured the channels last night and that solved another issue I had but not this one. I've already had 2 disconnects in the last hour I've used this machine.

 

Here's a screenshot of my power options:

Capture.PNGPower OptionsCapture.PNGProset Wireless Tools

Maugha
SCSI Port
Posts: 38
Registered: ‎01-13-2016
Location: US
Views: 494
Message 4 of 10

Re: New Yoga C930 dropping wifi

This is interesting.  I had a situation last night where my wifi stopped and it was only on my computer.  I went into Vantage (Which I had already set up the day I got this computer) and it said it was configuring Vantage--like it was new or never used before.  Through a series of checks, etc.  I had to restart my computer.  When I restarted it, the WIFI came back on.  But it was about 40 minutes that it was down.  

Guru
Posts: 1,137
Registered: ‎12-13-2016
Location: US
Views: 489
Message 5 of 10

Re: New Yoga C930 dropping wifi

Windows update has been known to remove the Wireless Adapter power configuration settings.  There's a registry hack that will restore them if you're comfortable doing that.

 

Before attempting that, however, try the laptop at work or on a public WiFi hotspot, somewhere. If it works there, that largely rules out your computer. 


____________________________________
I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo. I love beer.
lando786
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Posts: 5
Registered: ‎12-29-2018
Location: US
Views: 485
Message 6 of 10

Re: New Yoga C930 dropping wifi

Thanks for this, I've set the power saving mode to maximum performance. Hopefully that will help some but I don't have my hopes up since that seemed to have been the default for when the charger was connected, and the wifi drops also happen when the charger is connected.
Regardless, I'll keep you posted.
lando786
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Posts: 5
Registered: ‎12-29-2018
Location: US
Views: 465
Message 7 of 10

Re: New Yoga C930 dropping wifi

I thought it worked last night since I was able to stay connected for a while, but the issue seems to have started back up again. This time losing all 5g signal until I turned Wifi off and then on again, immediately jumped to full signal and connected.

 

Also there seems to be an update for my Intel AC 9260 wifi adapter but the installation is blocked on my machine.

 

Capture.PNG

 

Update: Managed to install new drivers by downloading the driver only package, hopefully this resolves this issue

bcromwell
What's DOS?
Posts: 1
Registered: ‎02-04-2019
Location: US
Views: 172
Message 8 of 10

Re: New Yoga C930 dropping wifi

Did the driver update resolve the issue?  I am having the exact same issue on the one I bought today. 

 

lando786
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Location: US
Views: 169
Message 9 of 10

Re: New Yoga C930 dropping wifi

I keep having the issue every now and then but much less recently. I'm not fully sure if it's a laptop issue or a wifi issue as my son's tablet has started doing something similar. I am running a Netgear Nighthawk(R) X4S R7800 for what it's worth.
Guru
Posts: 1,137
Registered: ‎12-13-2016
Location: US
Views: 145
Message 10 of 10

Re: New Yoga C930 dropping wifi


@lando786 wrote:
I keep having the issue every now and then but much less recently. I'm not fully sure if it's a laptop issue or a wifi issue as my son's tablet has started doing something similar. I am running a Netgear Nighthawk(R) X4S R7800 for what it's worth.

First, make sure both your computer and the Nighthawk are up to date. Netgear released new firmware for some Nighthawks recently. I remember having to update mine. Use Lenovo Vantage to update the computer.

 

Since it's both the computer and a tablet, it's either the router or some other interference. You can download WiFi Scanner or any similar program to see what's going on around you. There are about a dozen 2.4Ghz networks around me, clogging the band. I've had to force everything I have that WILL do 5Ghz onto that band, instead. 


____________________________________
I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo. I love beer.

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