Hi all, Have a strange one here I can’t seem to figure out and hoping someone may know the answer. We have some users who are unable to view our forum when connected on mobile data, with no issues when using a wifi connection. I have validated a users IPv4 and IPv6 addresses and neither are blocked…

That is a weird one. One thing worth checking is whether the mobile provider is the same for all these users and if it has put your site or IP range on some kind of blacklist. It would explain why several people hit the same issue on mobile data but not on Wi-Fi. A few other things that can sometim…

Thank you for your suggestions on this. I will reach out to the community and try to gather as much information from them as I can based on your points and see if there’s a pattern here.

I did a forum migration several months ago and several users couldn’t connect to the forum from their mobile network (it worked fine over WIFI) until they cleared their browser’s cache.

I’ve run through some tests with the community members having the issues and still nothing yet, so wondering if maybe someone has another idea they can think of. So far we’ve: Removed any blocked IPs that were done when the problems started to be sure there’s no issue there Asked all users to clea…

Hi Tom! Were you able to resolve your issue? This is going to be hard to replicate unfortunately. When you say people are not able to view your forum, what do they see instead?

Hi Tobias, thanks for the reply. We haven’t been able to resolve it yet. The users get the err_timed_out error, but it’s only received on their mobile carriers. I’ve asked them to let me know what carriers they are on, as the problem seems to be specifically for US users and it appears that they al…

Thatsounds like a carrier issue. I would reach out to your hosting provider and ask for help. If you can narrow it down to a carrier then they might also have a form you can use to ask to be removed from a blacklist.

Thanks for the reply again Tobias. We’ve done some testing and believed it was a carrier issue - however a user had someone test on the same carrier and it work without any issues. Right now I’m thinking it’s a case-by-case for each user, and each one has a problem unique to them. Will continue to t…

Users unable to access our forum with mobile data connections

Support

TomoftheFog (Tom) September 21, 2025, 7:20pm 5

Thanks for the suggestion there. I’ve asked one user to try it and no luck, with any of the browsers they use, but I appreciate the idea.

Topic		Replies	Views
Cannot reach one forum on AT&T mobile Support	13	1285	February 15, 2020
Improve user IP address detection for mobile users Feature	3	1127	December 14, 2015
iPhone timeout Self-hosting	4	288	May 11, 2024
Mobile app URL issues Support discourse-hub	23	1517	June 14, 2023
Discourse Mobile App - Performance Issue (possibly)? Support	6	518	August 27, 2018

Users unable to access our forum with mobile data connections

Related topics