# SIM7080 can't connect to HiveMQ Cloud **URL:** \ **Category:** HiveMQ Cloud\ **Created:** [December 3, 2023, 7:36pm UTC](https://community.hivemq.com/t/sim7080-cant-connect-to-hivemq-cloud/2535 "2023-12-03T19:36:32Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![antagonys](https://avatars.discourse-cdn.com/v4/letter/a/35a633/32.png) [@antagonys](https://community.hivemq.com/u/antagonys)\ **Post date:** [December 4, 2023, 2:28pm UTC](https://community.hivemq.com/t/sim7080-cant-connect-to-hivemq-cloud/2535/3 "2023-12-04T14:28:21Z")
Hi Dasha, Thank you for your reply! I am able to connect to “[broker.hivemq.com](http://broker.hivemq.com/)”, port 1883 without issue. So the problem must indeed be related to the SSL configuration. One other thing. Here is the [MQTTS documentation for the SIM7080 module](https://www.waveshare.com/w/upload/8/8e/SIM7080_Series_MQTT%28S%29_Application_Note_V1.01.pdf) As you can see at points 5.2 and 5.3.2 (MQTTS examples), they’re using 3 files for the TLS connection: - the root CA (in our case that’s [isrgrootx1.pem](https://letsencrypt.org/certs/isrgrootx1.pem)) - the client certificate - the client’s private key I read that you’re doing a one way handshake and so HiveMQ doesn’t require the last 2 files, but maybe my module does. I just found [this topic](https://community.hivemq.com/t/unable-to-connect-with-cluster/1874/8) where Diego suggested to add those files to the modules and use them for the TLS handshake anyway. The topic was not resolved and the module is from a different brand than mine, but maybe it applies too. If so, how can I generate those 2 files? I tried to follow Diego’s process, installed openssl, but I’m getting to a series of questions and I never get the certficates at the end… Thanks again for your assistance! --- _[View the full topic](https://community.hivemq.com/t/sim7080-cant-connect-to-hivemq-cloud/2535)._