# Class B Downlink fails: (in 2 different ways) **URL:** \ **Category:** Uncategorized\ **Created:** [March 23, 2021, 7:20am UTC](https://www.thethingsnetwork.org/forum/t/class-b-downlink-fails-in-2-different-ways/45850 "2021-03-23T07:20:44Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![descartes](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/descartes/32/47220_2.png) [@descartes](https://www.thethingsnetwork.org/forum/u/descartes)\ **Post date:** [March 23, 2021, 8:50am UTC](https://www.thethingsnetwork.org/forum/t/class-b-downlink-fails-in-2-different-ways/45850/2 "2021-03-23T08:50:14Z")
> [@How do I format my forum post? \[HowTo\]](https://www.thethingsnetwork.org/forum/t/how-do-i-format-my-forum-post-howto/8735): > > The TTN forum is using [Discourse](https://www.discourse.org/), which supports several ways to format your post: Markdown BBCode HTML Any combination of the above Quite often you’ll need an empty line above specific formatting to make it work. You’ll also have to type blank lines to create proper paragraphs; just pressing Return once and then typing a new block of text right below a previous block only creates a so-called line break, which might be harder to read. Leaving one blank line between two blocks of texts nicely… --- _[View the full topic](https://www.thethingsnetwork.org/forum/t/class-b-downlink-fails-in-2-different-ways/45850)._