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Issue 746129 link

Starred by 4 users

Issue metadata

Status: WontFix
Owner: ----
Closed: Aug 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 3
Type: Bug



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I changed internet providers and now Chrome is broken, keeps showing ERR_NETWORK_CHANGED

Reported by hbeck...@coronorcal.org, Jul 19 2017

Issue description

Chrome Version       :'Version 59.0.3071.115 (Official Build) (64-bit)'>
URLs (if applicable) :
Other browsers tested:
  Add OK or FAIL, along with the version, after other browsers where you
have tested this issue:
     Safari: OK
    Firefox: N/A
         IE: N/A

What steps will reproduce the problem?
-You won't be able to because it's only happening with this ISP. It started happening after we changed ISPs-- we switched from Sonic to Wave.
(1) 
(2)
(3)

What is the expected result?
The page should load.


What happens instead?
The page either loads forever, or shows an error message "Your connection was interrupted. A network change was detected. ERR_NETWORK_CHANGED". Some pages load more than others. Some work if I refresh 3+ times. Some pages load normally, while others have something wonky happen to the html and it doesn't look right. 


Please provide any additional information below. Attach a screenshot if
possible.
I'm trying this on Chrome right now and it actually won't let me attach any files. It works in Safari.

Things I've already tried: 

Restarted the router, cleared my cache, disabled all my extensions, reset settings in chrome, called my ISP- he restarted the router from his end and had me flush the DNS. 

Also asked for help on the chrome help forum, I'm not sure they actually read it because most of the troubleshooting suggestions where things I already said I did?:

My profile photoLevel 1
8:18 PM
Current row
I said: Edit message
Just to make sure we eliminate malware from the scenario, please follow the steps from this Help Article. - did all this
Does the issue persist in incognito mode? - yes
If this helps then temporarily disable your extensions to identify which one is causing the rendering problem. To do this go to chrome://extensions and uncheck Enabled for each extension one by one. - disabled them all
Clearing cache and cookies can be useful. -did this too
Uncheck Use hardware acceleration (Menu> Settings> Show Advanced Settings > System menu). - did this
Disable all the Firewall softwares you have installed / try on different Internet Network Provider. - I don't have firewall software; it's only on this internet provider- when I called we reset the router, flushed the DNS, neither worked. They don't know what the problem is
(Backup your bookmarks by exporting them as an html file (to your desktop or documents folder or other) then, try resetting the Chrome browser to see if that helps.  - did this
I still have the problem, as does one of my roommates.
+1

Someone responded on my forum post and said they could help if I could capture a net-internals log of it happening and attach it to a bug, which I've attempted to do. I started logging and opened Facebook- it loaded the first time and I think the second time. The third time the error message came up. 





 
chrome ERR_NETWORK_CHANGED.png
366 KB View Download
chrome ERR_NETWORK_CHANGED incognito.png
317 KB View Download
chrome-net-export-log.json
2.6 MB View Download
Components: Internals>Network>Connectivity
Labels: OS-Mac
The net-internals log you attached indicates that Chrome thinks your IP address is frequently changing.  Is your roommate who is experiencing this same problem also using a Mac?
Labels: Needs-Feedback
Yes she is. We're actually sisters and bought our Macs on the same day (2
years ago). The third roommate also has a Mac but she isn't experiencing
the problem 🤔
Project Member

Comment 5 by sheriffbot@chromium.org, Jul 20 2017

Cc: pbomm...@chromium.org
Labels: -Needs-Feedback
Thank you for providing more feedback. Adding requester "pbommana@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Labels: Needs-Milestone

Comment 7 by ajha@chromium.org, Jul 27 2017

Could anyone from the Network team help in further debugging of this.
I was going to look into this more but my Mac wasn't working so I had to replace it; I got a working Mac this morning so I'll take a look soon.
Labels: -Needs-Milestone Needs-Feedback
Please open a Terminal and run this command:
  ifconfig>1;cp 1 2;while diff 1 2;do ifconfig>2;done
When it exits, please attach the "1" and "2" files this command leaves behind to this bug.  If you can't find the "1" and "2" files to attach, you can use the "cat 1" and "cat 2" commands to display the contents of these files, and copy and paste the contents into this bug.
Tried this a few days ago and it worked: "..in some instances your Mac might repeatedly set up and clear the IPv6 configuration, showing it is not properly establishing this connection with your router. To turn off IPv6, go to the Network system preferences and select your Wi-Fi connection. Then click Advanced and in the TCP/IP tab, choose “Link-local only” from the Configure IPv6 menu, or choose Manually and then enter two colons “::” as the IPv6 address." 

Link-local only didn't work, but switching to manually and entering two colons seems to have fixed chrome. Even though it seems to be fixed I did have a network engineer at work follow your directions in the terminal. 
Where did you get those directions from?  Disabling IPv6 (by entering "::") is probably not a great idea.  What brand/model WiFi router are you using?

Could you attach the output of that terminal command?
hbeckman@: can you answer the questions in comment 11? Without more information, we'll have to close this issue.

Comment 13 by rch@chromium.org, Aug 22 2017

Status: WontFix (was: Unconfirmed)
Please feel free to reopen with the information requested in comment #11.

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