ERR_CONNECTION_RESET on code.jquery.com

[Eahlstan]

Greetings.

When I try to connect to code.jquery.com I get that error. I tried it on Chrome, Edge and Firefox and they all do the same (I never use Edge or Firefox, so they are 100% clean without any addons). Now the really strange thing is that when I change the language in those browsers (not my system language) from German to English everything works and when I set it back from English to German it resets the connection again.

I can ping the site and trace the route without problems:

  1     2 ms     1 ms     2 ms  2a02-8388-0a84-de80-362c-c4ff-fe30-17c3.cable.dynamic.v6.surfer.at [2a02:8388:a84:de80:362c:c4ff:fe30:17c3] 
  2    12 ms    10 ms     8 ms  2a02:8382:0:24::1 
  3     8 ms     9 ms     8 ms  at-vie-sk11-pe06-bundle-ether608-6.v6.aorta.net [2a02:8380:100:6e::1] 
  4     8 ms     *       11 ms  2a02:8386::1:47:0 
  5    10 ms     9 ms     9 ms  2003:0:fe00:e::1 
  6     *        *        *     Zeitberschreitung der Anforderung.
  7    21 ms    22 ms    20 ms  2003:0:1304:8004::2 
  8    20 ms    20 ms    26 ms  2001:4de0:ac18::1:a:1a 

Trying to open https://code.jquery.com/jquery-2.1.4.min.js results in these two:

Anyone knows why the connection is denied only when my browsers are set to German?

Thank you.

[Eahlstan]

I just forced Firefox to use IPv4 on code.jquery.com Using IPv4 I can access the site, using IPv6 causes ERR_CONNECTION_RESET - but still only when my browsers are set to german.

[derdeka]

+1

[motyc]

Also +1, see also https://github.com/jquery/codeorigin.jquery.com/issues/77#issuecomment-1000249204

[rmcolbert]

+1 for users trying to consume Constant Contact email forms. https://code.jquery.com/jquery-3.4.1.min.js fails to load w/ ERR_CONNECTION_RESET and then suddenly starts loading. Seems like an issue w/ the official StackPath CDN hosting.

[CratesDeThebes]

+1, my browsers are set in french and in english. A good test on my side :

• curl -6 https://code.jquery.com/jquery-3.4.1.min.js -I -v > Fail (Connection reset by peer, err 104)

• curl -4 https://code.jquery.com/jquery-3.4.1.min.js -I -v > Success

[bezin]

Same for me here: IPv6 does not work while IPv4 works fine.

 $ curl -6 https://code.jquery.com/jquery-3.4.1.min.js -I -v
*   Trying 2001:4de0:ac18::1:a:1b:443...
* TCP_NODELAY set
* Immediate connect fail for 2001:4de0:ac18::1:a:1b: Network is unreachable
*   Trying 2001:4de0:ac18::1:a:2a:443...
* TCP_NODELAY set
* Immediate connect fail for 2001:4de0:ac18::1:a:2a: Network is unreachable
*   Trying 2001:4de0:ac18::1:a:2b:443...
* TCP_NODELAY set
* Immediate connect fail for 2001:4de0:ac18::1:a:2b: Network is unreachable
*   Trying 2001:4de0:ac18::1:a:1a:443...
* TCP_NODELAY set
* Immediate connect fail for 2001:4de0:ac18::1:a:1a: Network is unreachable
*   Trying 2001:4de0:ac18::1:a:3a:443...
* TCP_NODELAY set
* Immediate connect fail for 2001:4de0:ac18::1:a:3a: Network is unreachable
*   Trying 2001:4de0:ac18::1:a:3b:443...
* TCP_NODELAY set
* Immediate connect fail for 2001:4de0:ac18::1:a:3b: Network is unreachable
* Closing connection 0
curl: (7) Couldn't connect to server

[oppipp]

I'm from Japan and I can't IPv6 connect to https://code.jquery.com/

[bdoserror]

I'm indirectly having this issue too, trying to access the James Webb Space Telescope site, and it's failing to load JQuery, and it looks like this bug. If I turn off my ethernet connection and switch to Wifi, it works.

[MackSix]

It happens to me too.

Putting the IPv4s in the HOSTS file allows me to connect.

This is specific to 2 Dell Alienware PCs. One an R11 (2020) with Windows 10 and an R10 (2021) with Windows 11. They both have a Killer(R) Wi-Fi 6 AX1650x 160MHz Wireless Network Adapter (200NGW).

I have an older HP, from 2017, with Windows 10 and all the IPv6 work fine on the same AT&T DSL connection in Kansas City.

On the Alienwares, 2001:4de0:ac18::1:a:2b doesn't work at all and the other IPs, I keep reloading browser with Ctrl+F5 and they sometimes work and sometimes they don't. I can't ping 2001:4de0:ac18::1:a:2b at all from the Alienwares but from the HP I can. The other IPs will sometime fail the first ping and the rest work.

This happens with Chrome and Firefox both.

I can connect to a IPv6 ajax.googleapis.com just fine with the 2 Alienware PCs. (e.g. https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js)

[bezin]

I'm indirectly having this issue too, trying to access the James Webb Space Telescope site, and it's failing to load JQuery

This site is broken for me, too.

Putting the IPv4s in the HOSTS file allows me to connect.

Can confirm that.

They both have a Killer(R) Wi-Fi 6 AX1650x 160MHz Wireless Network Adapter (200NGW).

I have this trouble with an Dell XPS 13, also using a Killer Wireless Network Adapter, though it is another model (n/a/ac 1435)

I keep reloading browser with Ctrl+F5 and they sometimes work and sometimes they don't. [...] The other IPs will sometime fail the first ping and the rest work.

Can confirm this, too. Completely random and I have not been able to reproduce this consistently.

[oppipp]

I'm also an Alienware m17 R2 with a Killer E3000 2.5 Gigabit Ethernet Controller. But PPPoE used IPv4 connection is fine.

[MackSix]

This also happens with:

https://cdn.fluidplayer.com/v2/current/fluidplayer.min.js https://cdn.fluidplayer.com/v2/current/fluidplayer.min.css

They are setup on Highwinds CDN like code.jquery.com is.

[MackSix]

Dell Engineers are looking at this. I spoke with their tech support and they remote controlled my desktop and saw the problem.

Since then, I have found the problem with this URL https://www.t-mobile.com when accessing IPv6.

$ dig AAAA www.t-mobile.com

; <<>> DiG 9.16.26 <<>> AAAA www.t-mobile.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21342 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.t-mobile.com. IN AAAA

;; ANSWER SECTION: www.t-mobile.com. 153 IN CNAME 7cfz4.x.incapdns.net. 7cfz4.x.incapdns.net. 23 IN AAAA 2a02:e980:b1::b0

;; Query time: 44 msec ;; SERVER: 192.168.1.254#53(192.168.1.254) ;; WHEN: Wed Mar 02 17:45:02 Central Standard Time 2022 ;; MSG SIZE rcvd: 107

It will load if I reload it several times. It will then work until I delete the browser file cache and the cookies for it.

Again, I have not problems with my older HP desktop with these sites on the same Internet connection.

[sprestel]

+1

[MackSix]

UPDATE:

Dell Engineers say the hardware works fine and said I should call software support.

They also said to use ethernet, but this same problem also occurs with the ethernet on both Dell desktops. The R10 (Windows 11) has the Killer E2600 Gigabet Ethernet Controller and the R11 (Windows 10) has the Killer E3000 Gigabit Ethernet Controller.

I have an ARRIS W210-700 DSL Residential Gateway from AT&T. I reset to factory defaults to no avail.

I tried a fairly new HP laptop that has an Intel Wi-Fi 6 AX201 and it works fine.

I will work on this further to try and find a solution.

[MackSix]

Good news!

After spending days on this, I finally found the problem. Even if you have no Killer Control Center or have uninstalled it, and even if you completely remove the Intel Killer Wi-Fi and Ethernet drivers, there is left a service running called "Killer Network Services." Run services.msc and find it in the list. Stop it and set Startup Type to manual or disable it. You should be able to delete it via the Command Prompt with the "SC DELETE" command.

If you disable the service and later the Killer Control Center is updated, it will start this service again and set the Startup Type back to automatic.

This crap is also installed by Windows Update! So, even if you install fresh Windows, it installs this crap. I tried to set the update policy through gpedit.msc to "2. = Notify before downloading and installing any updates" and Microsoft still installed it against my will!

Enjoy your computer again!

[sazzy4o]

I had the same issue on a Dell Laptop

I was able to solve the issues by turning off Killer Prioritization Engine in Killer Control Center:

[MackSix]

I had the same issue on a Dell Laptop

I was able to solve the issues by turning off Killer Prioritization Engine in Killer Control Center:

Yup, that works too. There is a thread going on Intel support forums here. They are far more interested in the problem than Dell was. https://community.intel.com/t5/Wireless/Killer-Network-Service-preventing-connection-to-some-websites/m-p/1366144#M40830

[Krinkle]

Thanks everyone. I'm glad a solution was found for your cases.

@Eahlstan and others: If you're still able to reproduce this issue and have ruled out any network middleware you run as possible cause, let me know. The fine folks from StackPath CDN did not find any cause on their end so far. In a week or so I'll close this issue and the upstream support ticket. Feel free to comment any time aferward or file a new issue. It's never too late :)

[theleonwei]

I had the same issue on a Dell Laptop

I was able to solve the issues by turning off Killer Prioritization Engine in Killer Control Center:

Thank you for the screenshot, it did solve the problem for one of my clients!

[specialtrevor]

THANK YOU ALL! Had the same issue with my Dell XPS (for jquery and a couple of other sites more recently) and I knew that when my laptop BSOD it was related to this Killer garbage but had never actually run it. Appreciated.

[bezin]

Thanks for letting us discuss (and solve) this issue here, even though it was unrelated to your website after all 👍