Question Multiple Network Adapters enabled causes internet issues

[Amused]

This is happening on both my laptop and my new desktop. (Lenovo W510 and Asus Maximus Formula XII)

If I leave all unused ethernet and wireless adapters in device manager, enabled, but disconnected, my internet is crippled and only certain pages load.

If I disable every unused ethernet and wireless adapter and keep only the adapter in use enabled in device manager, my internet works fine.

This just started in the last few months. I've never had problems like this before with multiple unused adapters.

On my laptop, if I am using Ethernet, I must disable the wifi adapter in the network settings and vice versa.

On my desktop, if I am using the GB ethernet, I must disable the 10GB Ethernet and wireless adapters in network settings for the internet to work properly.

Thanks.

 

[Amused]

Reason you have both 1G and 10G NICs?

Do you have an NAS that's capable of 10G connection that your PC is connecting to using using that 10G link but is disconnected now?

My Mobo (Maximus Formula XII) came with it. It's not connected to anything. I may use it down the road. Shouldn't have to disable it for the other to work, though.

 

[Amused]

If nothing works, then reset network

How to Reset Your Entire Network in Windows 10 and Start From Scratch

If you're suffering network problems in Windows 10 that you just can't seem to fix, the Windows 10 Anniversary Update now includes a feature that lets you reset your network back to how it was when you first installed Windows.

www.howtogeek.com

Curious thing. This is happening on a laptop (Ethernet won't work unless I disable WiFi in settings on a Lenovo W510) with a years old install of Win 10 and a brand new build with a fresh install of Win 10.

I'll try the reset later today. But I have a feeling this isn't it. Maybe it's my router? But how could that be?

This is so freakin weird.

 

[sdifox]

Export router settings, factory reset and reimport settings.

 

[Amused]

Export router settings, factory reset and reimport settings.

I will try this.

I am almost sure it is the router now. Wife just got a new XPS 13 laptop and must disable Bluetooth for internet to work.

WTF???

 

[mxnerd]

I will try this.

I am almost sure it is the router now. Wife just got a new XPS 13 laptop and must disable Bluetooth for internet to work.

WTF???

Even new laptop's Bluetooth interferes internet? I'm sure your house & network is haunted.

 

[VirtualLarry]

I'm sure your house & network is haunted.

Sadly, this.

Edit: Or you're running the same "Security Suite" on all of these PCs.

 

[mxnerd]

Have you updated the firmware?

RT-AX82U｜WiFi 6｜ASUS USA

www.asus.com

You probably need the latest 9.0 beta version which fixes DNSmasq vulnerabilities

Version 9.0.0.4.386.41994 Beta Version​

2021/02/01 71.29 MBytes​

ASUS RT-AX82U Firmware version 9.0.0.4.386.41994 (Beta Version)​

Security Fixed:​

Fixed CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687, CVE-2020-25684, CVE-2020-25685, CVE-2020-25686​

Please be noted this is a quick fix beta version for DNSmasq vulnerabilities. Refer to "Method 2: Update Manually" in https://www.asus.com/support/FAQ/1008000 to update this firmware.​

​

Please unzip the firmware file first then check the MD5 code.​

MD5: 6e581237f8c272fa7e0c82879f3bc1e9 ​

​

==

​

DNSpooq - Multiple vulnerabilities within dnsmasq (CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25684, CVE-2020-25685, CVE-2020-25686, CVE-2020-25687) - Red Hat Customer Portal

The Red Hat Customer Portal delivers the knowledge, expertise, and guidance available through your Red Hat subscription.

access.redhat.com

Dnsmasq vulnerabilities open networking devices, Linux distros to DNS cache poisoning - Help Net Security

Seven vulnerabilities affecting Dnsmasq, a caching DNS and DHCP server used in a variety of networking devices and Linux distributions, could be leveraged

www.helpnetsecurity.com

 

[VirtualLarry]

Tried disabling the Trend Micro Internet "Security" feature of the router?

 

[Amused]

Tried disabling the Trend Micro Internet "Security" feature of the router?

I never enabled it.

 

[Amused]

So, after all that, I discovered what is required is to turn off "allow the computer to turn off this device to save power" on the adapter I'm using.

That's it. Now all adapters can be left enabled and it all still works. So far...

I also got the beta BIOS for my router for that exploit, thanks mxnerd!!!

That one scared me. I bricked my last router with a firmware update so... yeah, firmware updates are scary shit for me.

 

[sdifox]

So, after all that, I discovered what is required is to turn off "allow the computer to turn off this device to save power" on the adapter I'm using.

That's it. Now all adapters can be left enabled and it all still works. So far...

I also got the beta BIOS for my router for that exploit, thanks mxnerd!!!

That one scared me. I bricked my last router with a firmware update so... yeah, firmware updates are scary shit for me.

That makes zero sense... Why would power saving on one device impact another?

 

[Amused]

That makes zero sense... Why would power saving on one device impact another?

No idea. But I found a post where someone claimed it stopped the same issue and tried it myself and it works.

Post was here. I also disabled "fast startup" in power options.

https://superuser.com/questions/1187681/need-to-disable-enable-wifi-adaptor-on-every-startup-to-make-it-work

 

[Amused]

Nope. Problem still remains after cold reboot.

I must disable the other adapters for ANY internet to work.

I can then re-enable them and the internet continues to work. Then problem happens again on cold boot.

WTF???

 

[mxnerd]

Have you reset the network stack?

==

Also clear all browser's history & cache. Or even uninstall and reinstall them.

 

[sdifox]

Have you reset the network stack?

==

Also clear all browser's history & cache. Or even uninstall and reinstall them.

One machine, sure it can happen. But three?

 

[mxnerd]

One machine, sure it can happen. But three?

Well, really have no other ideas. Reinstall Windows ?

Never encounter network issue like OP's .

 

[VirtualLarry]

Is OP target of LEOs? Asking seriously. This kind of stuff, I would expect to see if there were active over-the-air exploits being used against someone.

 

[Amused]

Is OP target of LEOs? Asking seriously. This kind of stuff, I would expect to see if there were active over-the-air exploits being used against someone.

I giggled.

No, I'm a retired Army vet with no connections to anyone of any notoriety. Few friends as I'm an extreme introvert too.

Today I updated the firmware of my Intel NIC. It appears the I225-V has been problematic on many Mobos lately. Luckily, it appears the FW upgrade may have solved my issue and I do not have any of the throughput issues these people are speaking of.

Intel Network I225-V Nework issue persist even after FW upgrade

Hello, I have a question about Intel network I225-V. My ASUS Maximus XII Extreme suffer with this issue - https://wccftech.com/intel-foxville-i225-v-2-5gbe-networking-issues-persist-z490-motherboards-affected/ like there mentioned. But when Intel planning to Supply the manufactures of the newest...

community.intel.com

Granted, I have only tested 2 cold boots, but both times I had full internet connectivity as soon as II could open a browser.

As for my wife's new laptop issue, I'll figure that out. Maybe it's a driver issue.

But thanks for the heads up on the exploit on my router guys!!! And all of your help! If this persists on my other systems I'll be back for more ideas.

 

[mxnerd]

So it's really caused by this. I thought your issue is unrelated, but seems it is. It has nothing to do with disabling other adapters.

Intel i225 "Foxville" 2.5GbE PHY Has a Flaw Affecting Performance, "Rocket Lake-S" 2H-2020 Production Confirmed

Intel's i225 "Foxville" family of 2.5 Gbps wired Ethernet controllers have a design flaw that affects performance, according to an official advisory sent by Intel out to its motherboard- and OEM PC partners (notebook- and pre-built desktop manufacturers). There are no security implications of...

www.techpowerup.com

==

By the way, I just bought a used Dell two weeks ago and it works fine. Then I updated BIOS yesterday and suddenly the onboard INTEL 1G NIC can't get a reserved DHCP IP I just setup on the router, it's always 169.x.x.x. I do have other USB NIC and WiFi connected so I did not notice the problem immediately. Until I launched VMware Workstation VM and the VM could not get online because the VM can't get an IP and the virtual was bound to the INTEL NIC.

I thought it was the BIOS. Yet it's not. I downgraded the BIOS and it's the same. It's the router that couldn't hand out DHCP IP only to this particular motherboard's INTEL 1G NIC! All other devices on the network get their DHCP IP addresses, whether reserved or not! As long as the INTEL NIC's MAC address is not on the reserved DHCP list, it gets an IP perfectly!

WTH?

 

[Amused]

So it's really caused by this. I thought your issue is unrelated, but seems it is. It has nothing to do with disabling other adapters.

Intel i225 "Foxville" 2.5GbE PHY Has a Flaw Affecting Performance, "Rocket Lake-S" 2H-2020 Production Confirmed

Intel's i225 "Foxville" family of 2.5 Gbps wired Ethernet controllers have a design flaw that affects performance, according to an official advisory sent by Intel out to its motherboard- and OEM PC partners (notebook- and pre-built desktop manufacturers). There are no security implications of...

www.techpowerup.com

==

By the way, I just bought a used Dell two weeks ago and it works fine. Then I updated BIOS yesterday and suddenly the onboard INTEL 1G NIC can't get a reserved DHCP IP I just setup on the router, it's always 169.x.x.x. I do have other USB NIC and WiFi connected so I did not notice the problem immediately. Until I launched VMware Workstation VM and the VM could not get online because the VM can't get an IP and the virtual was bound to the INTEL NIC.

I thought it was the BIOS. Yet it's not. I downgraded the BIOS and it's the same. It's the router that couldn't hand out DHCP IP only to this particular motherboard's INTEL 1G NIC! All other devices on the network get their DHCP IP addresses, whether reserved or not! As long as the INTEL NIC's MAC address is not on the reserved DHCP list, it gets an IP perfectly!

WTH?

Haunted.

 

[sdifox]

Not haunted, INTEL has been horribad lately.

 

[Amused]

Not haunted, INTEL has been horribad lately.

I wonder why? This used to be the LEAST worrisome part of computers... NICs are almost an afterthought now as they'd become so reliable, LOL.

Is it the new 2.5 and 10GB?

 

[sdifox]

I wonder why? This used to be the LEAST worrisome part of computers... NICs are almost an afterthought now as they'd become so reliable, LOL.

Is it the new 2.5 and 10GB?

Cost down is my guess.
INTEL messed up on CPU, cable modem and now NIC...

 

[Amused]

Cost down is my guess.
INTEL messed up on CPU, cable modem and now NIC...

It seems that with every new build or new network, something, somewhere requires a workaround. A kind of voodoo dance I must do to get it to work.

This time it's the NIC. LOL Oh, and the Corsair iQue software had to be set to compatibility mode to keep it from randomly crashing.

Oh, and the G.Skill RGB control software can't even find the RAM.

Besides the NIC, it seems my primary issues have been with this silly RGB. But it is hypnotizing.

 

[Amused]

So changing the DNS servers (Google Public seems to work best) in the router resolved ALL issues with all devices.

Now all laptops and desktops connect and get internet access as fast as our phones did. And no other devices need to be disabled.

The problem seemed to be almost exclusively with Intel NICs. Internet connected things around the house had no issues (Hue, plugs, etc) nor did our Note 10+ phones. The issue was name resolving all along and seemed to be isolated to Intel NICs.