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Old 05-30-2017, 07:35 PM   #1
eco_bach
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Troubleshooting network connections on specific domains


Hi
Have a puzzling network connection issue. Running Ubuntu-mate 16.04
Most websites are taking forever to load including but not limited to my webmail server. And then when I try and log in get an error saying "Couldn't connect to server"

Fine. So first thought is it MUST be the actual email server or my network. But I connect to the exact same domain on the exact same network from a 2nd PC(Windows 10 laptop) and there are NO issues, the site loads in no time and I can log in without issue.
I tried rebooting and also restarting my router, no difference.

So this must be some network related setting specific to my Ubuntu machine.
Possibly DNS related?
How can I troubleshoot this further?

Last edited by eco_bach; 05-30-2017 at 07:47 PM.
 
Old 05-31-2017, 10:10 AM   #2
Habitual
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Could be browser related, try restarting with addons disabled.
You said "Most websites", so there are other excepts behaving the same?

I use
8.8.8.8
4.2.2.2
for /etc/resolv.conf (or other forward points) where ever I have a choice on my network.

Windows on same network suggests cache/profile/addon.

Test against http://downforeveryoneorjustme.com/# (accepts IPs)
You running a dns daemon?

Try and let us know.
 
Old 05-31-2017, 06:34 PM   #3
eco_bach
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No not browser related as Chromium has same issue.

Google.ca en.wikipaedia.org load instantly! Most others do not!

Seems random. apple.com instant load, apple.ca just see "Connecting"

Other websites, including downforeveryoneorisitjustme I just see a spinning icon and "connecting", after about 30 sec to a minute the page finally loads!

Recently did a sudo apt-get update sudo apt-get upgrade

Possibly something went awry with my networking..?
 
  


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