How could a WPA2 WLAN with a random password with more than 40 characters be penetrated?

I can confirm an intrusion from an unknown MAC address (identified as a Realtek device), retrieve a new, valid IP from the DHCP pool, and use the network for about 1 hour.

The network is WPA2 – 1 for 2.4 GHz and 5 GHz with the same password. The 2.4 GHz network also includes a TP Link Extender that creates its own SSID, but with the same password. So a total of 3 networks with the same password.

This over 40 random password was set less than 10 days ago. It's certainly random, with the recommended mix of uppercase and lowercase letters, numbers and symbols generated by a reputed password manager. There are no proximal patterns that I can find or imagine, and no signs have been repeated – that's what I've taken care of.

How is it possible that this network has been compromised? so fast?

  1. In theory, is it even possible to crack a 40-digit random password IN 10 DAYS with fewer than a few hundred multi-GPU setups? I do not think anyone wants to "get me" so much.

  2. Is it possible that a network will enter / enter without knowing the password? A version of the KRACK attack or similar targeting the router or perhaps the repeater.

  3. Is it possible to perform a LOCAL attack similar to KRACK or BlueBorne on any of the 10 client devices where the intruder could have read the WiFi password from one of these clients and compromised the network?

  4. In addition to (WPA2-PSK-CCMP) -TKIP, the extended network displays a security setting of (WPA-PSK-CCMP) -TKIP. While the original networks only have (WPA2-PSK-CCMP) -TKIP. Is this a potential security hole?

I know that this is a broad question – but I am dealing with a very real intervention here. I would like to limit the possibilities and then the question based on community guidance

Small addendum: The clients are a typical mix of Android, iOS, streaming sticks, Windows, Mac, printer. No other IoT or Linux. There are some Bluetooth accessories scattered around.

safari – How can a public WLAN load the "Accept Terms of Use" page for you to use?

For some time, I've found that my MacBook Air does not load public Wi-Fi sites. All bars in the Wi-Fi icon above are solid, but the page I can connect to will not load. Never really bothered me.

This week, my wife started chemo and radiation therapy. There is a lot to learn when that happens. I had my laptop in the clinic with me to organize some things and check some while she underwent radiation. But I could not connect to their WiFi. I've tried many ideas from my iPhone search, but nothing worked. No frustration I needed.

So today, before I went to the clinic, I searched online again for someone who had a similar problem, and I found this page.

On March 28, 2018, when someone with the same problem as me wrote JBIS wrote this: "Go This is the only way to ensure that it is displayed. " tilt Connect to the Internet and enter it in the search bar.

When they took my wife to the clinic for treatment today, I did just that, and it worked. Your Wi-Fi page was loading and I was able to do the things I needed to do while waiting for my wife. One of the things on my list, later, when she was resting, was to find a way to thank this side and the person who gave this endearing advice.

This site recommends that you need 50 points before you can comment – in my case, "Thanks, JBis" for a helpful response almost two years ago that has done its job today. Therefore, I could not comment on the original post.

We hope that this contribution will allow others to benefit from the solution and recognize the person – JBis – who shared it.

WLAN fails at Bootcamp Win 7 x64 (MBP 8.1) from time to time. Works well on MacOS and Ubuntu. How can you find out why?

As a setup, Windows 7 Pro x64 with Bootcamp will be installed on an old Macbook Pro 2011. If another wireless device is on the same network, my connection will be interrupted every 5-10 minutes for 30-60 seconds and then resume. The WiFi card is the Mac's native version BCM4331 802.11n (VID 14E4 DID 4331) running under Bootcamp (latest version). driver – the same as on the Broadcom site.

I've tried to tinker with all relevant settings (BT coexistence, 20/40 Mhz, etc.) both in the device properties and on the AP, with no difference. On MacOS and Ubuntu, the same card works fine and no package is discarded.

How do I find out the cause?

wlan dies accidentally when reinstalling ubuntu 18.04.1

My Wi-Fi is turned off at random and remains inactive until restart. This seems to happen after about 5 or 10 minutes. I tried all the dozens of solutions released in this forum, but it did not work. When I boot in Windows mode, WiFi works fine. Funny thing is, I have Linux versions that are one and two decades old, and they work well. I've turned off WiFi sleep, as well as a bunch of other things.
I get many of these mistakes when this happens. It looks like there's a problem with the way DMA is tried:

ath: phy0: DMA could not be stopped in 10 ms AR_CR = 0xffffffff AR_DIAG_SW = 0xffffffff DMA

ath: phy0: Chip reset failed
ath: phy0: Channel can not be reset, reset status -22
ath: phy0: Chip reset failed

Any help is greatly appreciated. I literally tried dozens of solutions in this forum and none helped.
I would really like to work with a modern Linux version as the included compilers and other things could be much improved.

No WLAN 19.04 Kernel 5.0.0-23

Next to my problem No WLAN after the upgrade:

  • I've run the Wi-Fi information provided on this recommended page: My Wi-Fi connection is not working. What information is needed to diagnose the problem? and added the results here:
  • Under 19.04, no network devices are available when I use kernel 5.0.0-23
  • Wireless works fine on 19.04, if I use Kernel 5.0.0-21
  • Wireless works well on Windows 10 (dual boot)
  • Realtek RTL8188CE 802.11b / g / n Wireless Adapter (10ec: 8176) (Rev. 01)
  • Last week I tried to download the update to 5.0.0-21 and install it while I was using 5.0.0-23, and got the following message (I had to translate it): The package system is defective. Verify that you are using third-party packages. Disable them as they usually cause problems. Run the following command in the terminal: sudo apt-get install -f (system does not recognize this command!). Transaction failed: Package system is broken. The following packages have unmet dependencies: linux-headers-5.0.0-25-generic: Depends on: linux-headers-5.0.0-25, but is not installed,
  • Is it a security risk if I continue to use kernel 5.0.0-21?
  • At the same time, my screen resolution (at 5.0.0-23) gets stuck at 4: 3, no option to change. This is not as urgent as WiFi, but any suggestion would be welcome.

Networking – Connection to public WLAN not possible

I am a beginner of the Linux system. I am using Ubuntu 18.04.3 with VMware Player 15. I have a problem with how to connect to public WiFi.

I'm using a bridge connection that I need to use because I want VMware to be stand-alone as a PC on the network.
When I try to connect to public Wi-Fi, my original PC (Win 10) displays a page that redirects to a page of terms. After accepting the terms, I can connect to the Internet.

But in the VMware (Ubuntu) I can not reach WiFi, it always appears a box with the message "activation of the network connection failed". When I restart the system (Ubuntu), it indicates that it is connected, but a question mark (?) Appears on the WiFi icon. It seems that it can not recognize the public WiFi.

I have already selected adapters that will be used in my original PC (Win 10). I've also tested in my house that tried to connect my private WiFi, and it works, whether WiFi or Ethernet. But when I tried to connect to public WLAN, it fails.

When Ubuntu told me there was a Wi-Fi connection, I was only able to receive inet6, but not inet, and it seems that Ubuntu can not recognize the DNS of this public Wi-Fi network.

How can I fix it?

Network – How do you secure your connection via public (office) WLAN?

I just got an office at WeWork and I have a couple & # 39; encoders & # 39; to my left and to my right and they play with my stuff from the first day? I have a Surface Pro right now, this is a WeWork that connects to office Wi-Fi. I have no idea what they did exactly. But I have found a so called solstice client has downloaded it, does it seem like a screensharing app? Maybe they could write this on my PC.

What is the best plan? Get a router that encrypts and connects to the office network, and then I connect to it? What do I need?

Start VPN after connecting? Is that necessary Are there any links that give a good overview?

Network – Using a Router as a WLAN Adapter -> Network Problems

I recently purchased a desktop PC. The network card does not support wireless connections. Since I prefer to avoid using a cable to connect to the router (they are in different rooms), I have tried another solution: Setting up my old TP-Link WR740N router as a client for my "wireless main network" and manufacture a connection to the TP-Link router with my PC via cable.

I've already got it running, mostly using this guide and the DD-WRT site to change the firmware. The wireless LAN mode of the TP-Link is set to "Client", it connects to my main wireless network, the cable is connected to the TP-Link, and I post it from my desktop PC. However, if I use my connection a bit more, eg. When you download a game from Steam, watch a stream, watch a video, or simply browse the web, the throughput seems to be extremely slow, almost nothing. Pinging works, but downloading is stopped. The pages will not load because the response time is too long until I restart the secondary router. this will reconfigure the connection. Then everything seems to be all right again.

I tried to change many options on the DD-WRT interface, without success. I do not think I can list everything, but I tried to change the TCP overload algorithm, set the wireless mode to Bridged, and disable the SPI firewall. I enabled Syslog on the UI, but I did not notice anything from the logs.

I downloaded and ran Malwarebytes. It has quarantined something, but the problem persists (now it finds nothing new).

I've installed Wireshark to see a bit more clearly what's going on. What I can see right now is that if my connection slows down, it will show a lot of TCP retransmission packets, as well as some RST labeled packets, all from my PC (the source IP address is the one the TP link has Router assigned to my computer). ,

It is hard to believe that the hardware of the router can not handle the traffic because the connection is fine for some (sometimes more than 10) minutes. It's fast and responsive. It's like slowing down the pace artificially when there's too much going on. It is also worth mentioning that if I connect my PC with a cable to the main router, everything works perfectly and the problem does not occur.

I'm stuck because I have no idea how to fix this. I want to get to the bottom of it. Does anyone have any ideas?