Problems to connect to the discourse forum from UofM


(Beatriz Paniagua) #1

Hi!

Lucia Cevidanes, Priscille de Dumast and Clement Mirabel havent been able to connect to our discourse.slicer.org forum. I am posting their problems on their behalf since they cant access the forum.

Clement says:

Have you been able to go on the website via your laptop? I can only connect with my smartphone.

Lucia says:

I cannot access it from my laptop either. Can you please try the imacs too? Thanks!

Priscille says:

I tried all day long yesterday from the lab on my laptop without success, but I was finally able to log in yesterday evening at home!
Now everything works fine both on my laptop and on the iMacs.

Could there be a problem with the Eduroam wifi with this website?

Any idea of what might be happening?
Thank you!

Bea


(Isaiah Norton) #2

Do you have any more information about what happens? If the response is “URL not found” then my guess would be there was some hang-up in propagation of the DNS update which added (CNAME for) discourse.slicer.org

Could you have them try:

  • ping discourse.slicer.org in a command prompt/shell
  • temporarily changing their DNS server to 8.8.8.8 & 8.8.4.4 (Google DNS servers)? Be sure to write down the old settings…
  • ping again, and try force-reloading the page (command-shift-R/ctrl-shift-R on mac/windows)

There’s some other less likely possibilities, but let’s eliminate the simple one first.


(Beatriz Paniagua) #3

The ping command is fine

And changing the DNS server changed neither the connection nor the ping answer.


(Isaiah Norton) #4

That’s odd… so, probably not network problem. Are they using the same browser? What is the error message? Can they reach the landing page, but then get a login error? Can they open discourse.org or some of the other hosted customers? (see list here: http://www.discourse.org/customers)

I guess it is possible the domain is blocked, but usually they would get a specific notice about that.


[notes] CDN problem on umich.edu eduroam network
(Isaiah Norton) #5

From email follow-up: the problem only happens on some wifi networks, but works fine on others. They are going to contact university IT.