# Problems to connect to the discourse forum from UofM

**URL:** <https://discourse.slicer.org/t/problems-to-connect-to-the-discourse-forum-from-uofm/85>\
**Category:** Forum and website feedback\
**Created:** [April 12, 2017, 3:17pm UTC](https://discourse.slicer.org/t/problems-to-connect-to-the-discourse-forum-from-uofm/85 "2017-04-12T15:17:18Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![bpaniagua](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/bpaniagua/32/20_2.png) [@bpaniagua](https://discourse.slicer.org/u/bpaniagua)\
**Post date:** [April 12, 2017, 3:17pm UTC](https://discourse.slicer.org/t/problems-to-connect-to-the-discourse-forum-from-uofm/85/1 "2017-04-12T15:17:18Z")

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Hi!

Lucia Cevidanes, Priscille de Dumast and Clement Mirabel havent been able to connect to our [discourse.slicer.org](http://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

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**Author:** ![ihnorton](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ihnorton/32/9_2.png) [@ihnorton](https://discourse.slicer.org/u/ihnorton)\
**Post date:** [April 12, 2017, 4:34pm UTC](https://discourse.slicer.org/t/problems-to-connect-to-the-discourse-forum-from-uofm/85/2 "2017-04-12T16:34:24Z")

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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](http://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.

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**Author:** ![bpaniagua](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/bpaniagua/32/20_2.png) [@bpaniagua](https://discourse.slicer.org/u/bpaniagua)\
**Post date:** [April 12, 2017, 4:55pm UTC](https://discourse.slicer.org/t/problems-to-connect-to-the-discourse-forum-from-uofm/85/3 "2017-04-12T16:55:30Z")

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The ping command is fine

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/e/4/e4c57c7188740d1edb88df516d841af57532fc44.png)  
And changing the DNS server changed neither the connection nor the ping answer.

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**Author:** ![ihnorton](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ihnorton/32/9_2.png) [@ihnorton](https://discourse.slicer.org/u/ihnorton)\
**Post date:** [April 12, 2017, 5:48pm UTC](https://discourse.slicer.org/t/problems-to-connect-to-the-discourse-forum-from-uofm/85/4 "2017-04-12T17:48:21Z")

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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](http://discourse.org) or some of the other hosted customers? (see list here: [http://www.discourse.org/customers](http://www.discourse.org/customers))

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

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**Author:** ![ihnorton](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ihnorton/32/9_2.png) [@ihnorton](https://discourse.slicer.org/u/ihnorton)\
**Post date:** [April 12, 2017, 9:23pm UTC](https://discourse.slicer.org/t/problems-to-connect-to-the-discourse-forum-from-uofm/85/5 "2017-04-12T21:23:43Z")

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