MQTT System Error "connection refused"

Hi, couldn’t bring up my AS today. tried via Localhost and IP but both get “connection issue”

Logs are:
Dec 28 17:36:55 lifibeam-HP-Pavilion-Laptop-14-dv1xxx chirpstack-application-server[2983]: time=“2021-12-28T17:36:55.744695583Z” level=error msg=“integration/mqtt: connecting to broker error, will retry in 2s: network Error : dial tcp 127.0.0.1:1883: connect: connection refused”
Dec 28 17:36:57 lifibeam-HP-Pavilion-Laptop-14-dv1xxx chirpstack-application-server[2983]: time=“2021-12-28T17:36:57.746299911Z” level=error msg=“integration/mqtt: connecting to broker error, will retry in 2s: network Error : dial tcp 127.0.0.1:1883: connect: connection refused”
Dec 28 17:36:59 lifibeam-HP-Pavilion-Laptop-14-dv1xxx chirpstack-application-server[2983]: time=“2021-12-28T17:36:59.747892436Z” level=error msg=“integration/mqtt: connecting to broker error, will retry in 2s: network Error : dial tcp 127.0.0.1:1883: connect: connection refused”
Dec 28 17:37:01 lifibeam-HP-Pavilion-Laptop-14-dv1xxx chirpstack-application-server[2983]: time=“2021-12-28T17:37:01.749484716Z” level=error msg=“integration/mqtt: connecting to broker error, will retry in 2s: network Error : dial tcp 127.0.0.1:1883: connect: connection refused”
Dec 28 17:37:03 lifibeam-HP-Pavilion-Laptop-14-dv1xxx chirpstack-application-server[2983]: time=“2021-12-28T17:37:03.750107257Z” level=error msg=“integration/mqtt: connecting to broker error, will retry in 2s: network Error : dial tcp 127.0.0.1:1883: connect: connection refused”
Dec 28 17:37:05 lifibeam-HP-Pavilion-Laptop-14-dv1xxx chirpstack-application-server[2983]: time=“2021-12-28T17:37:05.752360846Z” level=error msg=“integration/mqtt: connecting to broker error, will retry in 2s: network Error : dial tcp 127.0.0.1:1883: connect: connection refused”
Dec 28 17:37:07 lifibeam-HP-Pavilion-Laptop-14-dv1xxx chirpstack-application-server[2983]: time=“2021-12-28T17:37:07.753962288Z” level=error msg=“integration/mqtt: connecting to broker error, will retry in 2s: network Error : dial tcp 127.0.0.1:1883: connect: connection refused”
Dec 28 17:37:09 lifibeam-HP-Pavilion-Laptop-14-dv1xxx chirpstack-application-server[2983]: time=“2021-12-28T17:37:09.755284298Z” level=error msg=“integration/mqtt: connecting to broker error, will retry in 2s: network Error : dial tcp 127.0.0.1:1883: connect: connection refused”
Dec 28 17:37:11 lifibeam-HP-Pavilion-Laptop-14-dv1xxx chirpstack-application-server[2983]: time=“2021-12-28T17:37:11.756387124Z” level=error msg=“integration/mqtt: connecting to broker error, will retry in 2s: network Error : dial tcp 127.0.0.1:1883: connect: connection refused”
Dec 28 17:37:13 lifibeam-HP-Pavilion-Laptop-14-dv1xxx chirpstack-application-server[2983]: time=“2021-12-28T17:37:13.757664815Z” level=error msg=“integration/mqtt: connecting to broker error, will retry in 2s: network Error : dial tcp 127.0.0.1:1883: connect: connection refused”
Dec 28 17:37:14 lifibeam-HP-Pavilion-Laptop-14-dv1xxx systemd[1]: Stopping ChirpStack Application Server…
Dec 28 17:37:14 lifibeam-HP-Pavilion-Laptop-14-dv1xxx systemd[1]: chirpstack-application-server.service: Succeeded.
Dec 28 17:37:14 lifibeam-HP-Pavilion-Laptop-14-dv1xxx systemd[1]: Stopped ChirpStack Application Server.

Any idea how to fix? MQTT doesn’t have a password or username set and have reinstalled mosquitto.

AWS EC2 security group has ports open for 1883, 8000, 1700 and 8080. Operating on Ubuntu.

check and ensure that your MQTT broker is running.

have you tried checking mosquitto status ??

try on cmd:

“sudo systemctl status mosquitto”. It should have a green light point and say: “active and running”.