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Windows laptops Losing Wireless Connection Firmware 25.9?

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

A new stable release candidate is available now as 25.11. Anyone want to give it a try that was seeing the issue with Windows machines?

 

New

  • HSRP support for Bridge Mode Layer 2 client isolation

Bug fixes

  • AP spoofs not being detected. (MR52/72)
  • A corner case where AP broadcast on W52 channel when in site survey mode (MR84)
  • A corner case where AP would stop broadcasting SSID (MR30H/33/42/53/53/74/84)
  • A corner case causes AP to reboot (MR18)
  • A corner case causes AP to stop responding to clients (MR32)
  • A corner case causes APs lose connectivity to dashboard until reboot in certain cases (MR33/74)

Known issues

  • Condition under investigation that causes VoIP RTP packet loss (MR42/MR52/MR53)
  • Condition under investigation causes 2.4GHz radios to become unresponsive (MR32/MR72)
  • Condition under investigation causes radios to become unresponsive for 5 seconds in high density networks (MR34/MR32/MR72/MR26)
  • Condition under investigation causes lower than expected throughput on the 2.4GHz radio (MR26/MR34)

Other

  • General performance and stability improvements.
MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Same issue from here. We also applied the 25.11 release, but no luck. Windows clients running 7 or 10 has packet losses. The same machine when boot with linux OS does not have packet loss. Apple devices like iPhones and Mac Books are not having issues. Did someone fix this already?

 

We have a open case with Meraki, but looking further here if someone made progress.

 

Cheers!

 

Alexsandro Reimann.

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

This is becoming ridiculous. We also did not have problem with Mac devices (which is Linux based). 

What is there is security vulnerability and we are forced to update ? 

 

Just to ask you one more thing - do you use SonicWall for the firewall? Most of the people have problem when using SW. 

 

 

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

No SW here. All the network run Cisco devices. Wireless running with MR53.

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?


@AReimann wrote:

Same issue from here. We also applied the 25.11 release, but no luck. Windows clients running 7 or 10 has packet losses. The same machine when boot with linux OS does not have packet loss. Apple devices like iPhones and Mac Books are not having issues. Did someone fix this already?

 

We have a open case with Meraki, but looking further here if someone made progress.

 

Cheers!

 

Alexsandro Reimann.


Have you been able to provide Meraki with monitor mode packet captures while the issue is occurring? I know from the cases that were open no one has provided useable packet caps to help diagnose the issue. This issue is seemingly very difficult to reproduce in a lab/test environment and without monitor mode packet caps it's extremely difficult to see what's happening. 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

I work for a school district and I'm having this issue at one of my elementary schools after upgrading to 25.9.  Most of the schools have been running 25.9 with no issues, so I thought it was fine.  

 

Our teacher laptops (Dell E5550 running Windows 7 Enterprise) will randomly disconnect.  The SSIDs will sometimes not even be visible briefly.  Then they reboot their computer and everything is fine for a while.  Oddly the students running HP G3 Chromebooks in the same room won't get dropped.  

 

I figured that maybe the issue would be resolved with 25.11 coming out now, so I pushed that to this school, and the issue still occurs.

 

I provided a monitor mode capture, but of course the issue didn't come up while I was doing it!  

 

My case # is 02634264

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

@Jmezo What kind of WiFi cards are in the Dell's? What driver version are you using with them? I know of at least one district that updated the WiFi driver on their machines and the issue went away. Unfortunately doing that at my district has not helped. 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

We have mostly Dell E7470 with Intel Dual Band Wireless-AC8260

Driver version: 19.10.10.2 - you cannot upgrade this higher on Windows 7 for some reason. 

Just FYI - similar thing occurred for Surface Books. 

 

Regards,

Filip

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

We are seeing the same issue with our dells e7470 and e7480

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Now the really important question; what are the WiFi chipsets in the affected machines?

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Do you mean WiFi card model? That would be this one

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

We are using the integrated wifi card that comes with Dell (I'll take the exact model, I have another session with customer to make some new tests today) and also using a USB Wifi Adapter from TP-Link. Both of them are giving packet loss when running Windows 10 or 7. With Windows 8 and linux based OS the network goes smoothless.

 

We try to deactivate client load balance feature (since it received some improvements at 25.x), but running 25.09 or 25.11, no matter the configuration applied, the scenario is the same, packet loss only at Windows 7 and 10 OSs.

 

I'll ask TAC to rollback to 24.12 if we don't get any success adjusting some settings today. Since this is a new network, it was installed initially with 25.09.

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Guess what??? We made rollback to 24.12 yesterday and everything back to normal. Customer also report a better response time to ICMP tests. 

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

@RBederian What do you have the minimum bitrate configured at for your SSID showing the issue?

 

@AReimann Quite frankly I don't think the issue you're experience is what was being discussed in this thread. 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

@MRCUR, sorry, but I did not say it before, I found logs for windows stations regarding a load balance algorithm trying to redirect the device to another AP, with fewer users associated to it, but the client got disconnect and looking for logs I found a high number of messages like '802.11 association rejected for load balancing'.

 

I did not put all the details and logs found from my side, but reading the thread, everything matched. The only part I miss is to use sonicwall firewall. 

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Just wanted to see if you guys have updated the firmware and have addressed this issue?

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Hi @RBederian,

 

      The original building with issues is running 24.12 since we downgrade the code. There is a new building now at customer site, running code 25.11. I'll ask the customer about performance issues and I'll reply back.

 

Cheers!

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

We are sticking with 25.3 as the issue is still present in 25.11. The last time I spoke to the MR team they had identified what was likely causing the issue but did not have updated firmware ready. 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Got it. Can you keep me posted when you hear back from Meraki?

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

I'll update this thread when I hear back from the MR team. 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

@RBederian Give 25.12 a try. 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Did 25.12 address the issue?

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

I'm updating my clients's APs that were having issues before. We'll see how those sites do later this week, and I'll report back if I have any issues.

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

@RBederian It should, yes. Give it a test and if you still have issues, ask Support to disable CCX completely. 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

How's the new firmware doing? Has it resolved this issue? I was thinking about upgrading it tomorrow and wanted to see how it has been for you guys so far

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

I have 25.12 running on ~1,400 AP's and so far have not had any complaints of random disconnects. This is only the second day with teachers back in the district however. Hopefully it's really fixed. 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

My sample size is much smaller, but it was limited to sites with very vocal users and one or two APs at each. Been running 25.12 without complaint. 

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

I see the same problem with windows clients. Now i am on 25.12 on MR18 but still the same issue, so now i am waiting for support to disable ccx extensions to see, if this makes any difference.

 

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Hi, 

 

Just picked up on this thread as we are experiencing similar issues in our environment.  It seems to be in a single location but looks like client is trying to switch APs and that causes the issue.

 

Seeing the following in the event log on an impacted machine (Dell).

 

The network interface "Intel(R) Dual Band Wireless-AC 8260" has begun resetting. There will be a momentary disruption in network connectivity while the hardware resets.
Reason: The network driver requested that it be reset.
This network interface has reset 13 time(s) since it was last initialized.

 

Is this message found for others with this issue?  Our SSID is 802.1X based with machine/user certificates for authentication.

 

Users reporting random disconnections and short periods of dropped access.  

 

Currently running 25.11 and considering trying 25.12 before opening a support request to go pre-25.9.

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Keep in mind you can only revert firmware for 1 week, if I remember correctly. 

 

This is becoming ridiculous by now. half of the year yet they could not address it? 

 

 

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?


@Krewal wrote:

Keep in mind you can only revert firmware for 1 week, if I remember correctly. 

 

This is becoming ridiculous by now. half of the year yet they could not address it? 

 

 


Support can modify firmware version on the network at any time. The issue being discussed in this thread is believed to be resolved in 25.12. 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?


@GaryM wrote: 

The network interface "Intel(R) Dual Band Wireless-AC 8260" has begun resetting. There will be a momentary disruption in network connectivity while the hardware resets.
Reason: The network driver requested that it be reset.


You should update the driver directly from Intel. What you're seeing is very likely a driver issue and unrelated to what is being discussed in this thread. 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

I remember when we were reverting it was strict. Maybe they changed that policy.
Also RVilhelmsen reports it is still a problem for him.

I think we are going to wait few more weeks to see how it works for others.
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

I'll instruct our support department to update the driver, however the reason I thought the issue might be related is because we are seeing similar logs on the AP to information you reported earlier in the thread.

@MRCUR wrote:
"Updating the Intel driver has not changed anything and both Win 7 & 10 are exhibiting the issue. When this is happening, the AP logs "Client has left AP" numerous times every few seconds. Often times the event log will also show "XX events were not logged". Eventually the client can successfully connect, but the issue reoccurs eventually."
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

@GaryM You would see the AP log clients leaving because your clients are disconnecting from (leaving) the AP. But since you are seeing the client side WiFi adapter reset at the request of the driver, it seems like a client side driver issue. We never saw the client driver request a reset throughout this issue. 

 

It wouldn't hurt to move to 25.12 firmware since it is the stable release candidate and will likely become the stable release shortly. 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Haven't updated my status on this in a while.  At my original problem location I downgraded to 24.12 and everything has been fine since.

 

Now in May 2018, another network was upgraded to 25.9 and the problem started occurring there.  I didn't trigger the upgrade, so I'm not sure what did.

 

Anyways, I tried upgrading the firmware to 25.11 and the problem persisted.  Then on Friday 8/24 I tried to update the firmware to 25.12.  Now this morning I'm getting even more reports of issues with disconnecting.  

 

The problem is with our staff laptops.  They're Dell e5550 with Intel Dual Band Wireless-AC 7265 adapters.  I know the machines aren't up to date on the latest Intel drivers, but mine is.  I went to that building this morning and was disconnected 3 times in an hour.  

 

At this point I've got the downgrade to 24.12 scheduled to run tonight.

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

@Jmezo Since you can reproduce this pretty consistently, I'd recommend contacting Support and asking them to disable CCX completely on the SSID you're having issues with while still on 25.12 firmware. The thought is CCX has been causing these issues. Part of it was disabled in 25.12, but perhaps not enough to fix this completely. 

 

If you do this and have a case number, feel free to message it to me and I will make sure it gets in front of the product team. 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

I know this is an old thread, but our issues appear to have been resolved by moving to 25.12

 

We have not made any request for CCX extension disabled as yet.  We have not made any driver updates beyond one machine.

 

We had a significant number of complaints relating to a single area on one of our buildings.  Logs seems to indicate clients moving between APs constantly at times.  

 

We have been on 25.12 just over 1 week.

 

This might all be irrelevant to thread, but I thought I would share experience in case anyone sees similar.  All APs are MR42.

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Unfortunately the CCX changes in 25.12 did not resolve the issue for us. We also tried completely disabling CCX/Fastlane which did not resolve the issues either. We've now modified the min. bitrate for our primary SSID to see if that helps (no complaints so far). 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

I put the minimum Bitrate to 12MBit. Runningversion 25.12. No complaints the last days.

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

What's strange we are having this issue with clients using the pre-shared key and not radius. I would assume its related to both authenticate, here I always an error with my Asus too that easily solve by Asus Live Update you should try this.

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

@MRCUR Do you have any MR34 running on 25.12?  I need to find out if they fixed the DHCP issue with a WPA2 passcode SSID without being a guinea pig again.

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

@Asavoy We have lots of MR34's on 25.12 but the only SSID with WPA2 uses Meraki DHCP (which is working). 

MRCUR | CMNO #12
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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

Having a similar issue on an SSID with WPA2 preshared key on Dell laptops with Intel cards.   Seems making my channel width 20Mhz worked previously so going to try again with this particular network.  Currently running 25.13.

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

I haven't had the issue after 25.12 when I updated. I'm running similar hardware on a couple systems, Dells with Intel cards. Though, we have way more HP these days, so it's not a good measure to know for sure.

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Re: Windows laptops Losing Wireless Connection Firmware 25.9?

One thing to remember, especially with Dell laptops, is that the OEM uses some proprietary software/drivers that don't always get along with WAPs. If a Dell has the "Unified Wireless Driver" software (or whatever it's called), you should definitely uninstall that POS software, uninstall the driver, reboot and let Windows reinstall the drivers. Unfortunately, most of the time you won't be able to update the driver and are stuck with whatever 3 year old driver Dell has released. I refuse to use HP products, so not sure if they're still as bad as Dell for that.

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