On Mon, Jun 13, 2022 at 12:34 AM home user <mattisonw@xxxxxxxxxxx> wrote:
On 6/12/22 4:25 AM, George N. White III wrote:
> On Sun, Jun 12, 2022 at 12:21 AM Tim via users
> <users@xxxxxxxxxxxxxxxxxxxxxxx <mailto:users@xxxxxxxxxxxxxxxxxxxxxxx>>
> wrote:
>
> On Sat, 2022-06-11 at 19:50 -0600, home user wrote:
> > Multiple times over 4-5 hours I
> > - powered down and powered up the modem;
> > - reset the modem;
> > - disconnected and reconnected the yellow ethernet cable; and
> > - rebooted the work station, trying both OSs.
> > So I switched back and forth multiple times. There also were other
> > URLs
> > that worked in windows-7 but not Fedora-35, but I think 3 URLs were
> > enough of a sample for this thread.
>
> Sounds like your ISP had problems. Do they have a status page? If so,
> have a look, see if it lists past outages, bookmark it for next time
> (also find its IP, now, so you can check if DNS doesn't work in the
> future).
>
>
> Randomly rebooting without gathering data is time consuming and not very
> informative.
It was not random. The rebooting was done to:
* compare windows-7 and Fedora-35 in hopes of determining whether the
problem was in Fedora-35, the modem, or "out there".
* see if something done to the modem helped.
I did what I knew to do, though I recognize that my knowledge on these
things is poor.
You will find it well worth the effort to learn some basics of network
troubleshooting:
> Many ISP's provide a support site that offers a speed test and in some
> cases even include information about current status of their service. A
> speed
> test can tell you if the problems you see are local or in your ISP's
> access to
> the wider internet. There are also sites like downdector that collect
> problem
> reports and provide graphs of the numbers of reports over time. Those
> peaks
> often coincide with times when I encountered problems, so can help to
> confirm
> that a problem wasn't something on my end.
The only speed test I've ever seen seemed very "snoopy" and intrusive
the last time I accessed it. That was some time ago, I don't recall
when. I do recall Firefox and/or NoScript not liking the site. I've
never seen any hint of a speed test being offered by my ISP
(comcast/xfinity), though I log into that company's site at least once
per month. Status site for comcast: see my reply to Tim. What if I
can't access comcast's/xfinity's site?
If you can't connect to your ISP's site you should call their support line
and be prepared to wait in a queue with all the others having problems
(I connect my phone to the charge and put in speaker mode so i can
do other stuff while I wait).
"Speed tests" are a popular way bad actors get victims to sites that try
to extract money. Using your ISP's test should be as safe as anything
from your ISP. ShieldsUP! https://www.grc.com/ is a reputable site that
you can use to scan your system for internet accessible ports.
I could not access downdetector Saturday morning.
That is what I see when I'm having problems, but once service is
restored I can usually see the spike in reports around the time I had
a problem, which means I don't pester admins at the remote site I
couldn't reach.
> During periods of high demand (Superbowl, public hearings by US Congress)
> the internet may fall back to less optimal routing. Your zoom issues
> could be
> due to "rate limiting" by your ISP, generally imposed during periods where
> customer aggregate demand exceeds capacity.
My zoom issues occur after the zoom meeting is done and I've left
(disconnected from) the zoom site in Firefox, not during the meeting. I
have not tried any diagnosis.
Compare "ss -tl" results before, during, and after a zoom session.
> You appear to be using a wired connection, but if you have wifi you should
> check that only "known to you" devices are connecting. Your router should
> list connected devices by their MAC address, so you may want to collect the
> MAC addresses of "known to you" devices and turn off MAC address
> randomizaton
> for portable devices when connected to your home wifi.
I'm using a wired connection only.
No wifi.
No router.
Are you running internet facing services (web page, ssh, etc.)? To list
active tcp connections and listening ports, use "ss -tl".
"ShieldsUp!!": https://www.grc.com/ is a reputable site that will tell you
which ports are open to the internet.
George N. White III
_______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
