# Does Edge MQTT Transmission tag data gets pushed to MQTT Server after connection is back **URL:** \ **Category:** MQTT Modules\ **Created:** [January 15, 2024, 2:37am UTC](https://forum.cirrus-link.com/t/does-edge-mqtt-transmission-tag-data-gets-pushed-to-mqtt-server-after-connection-is-back/495 "2024-01-15T02:37:01Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![peanut](https://avatars.discourse-cdn.com/v4/letter/p/b5e925/32.png) [@peanut](https://forum.cirrus-link.com/u/peanut)\ **Post date:** [January 15, 2024, 2:37am UTC](https://forum.cirrus-link.com/t/does-edge-mqtt-transmission-tag-data-gets-pushed-to-mqtt-server-after-connection-is-back/495/1 "2024-01-15T02:37:01Z")
Hi All I have an Ignition Edge (MQTT Transmission module installed) connected to Ignition Server (MQTT Engine & Distributor) using MQTT protocol through 4G. Both having tag logging/historian enabled with the same database name. Hence by default, the server side is able to display the trend data of the edge. When 4G/connection is down at 10AM, no data will be sent to server. When connection is normalized at 11AM, there will be a blank gap between 10-11AM, and the logging continues. Suppose the connection is stable after 11AM, will trend data from Edge’s 10-11AM be slowly pushed to the server, to “fill up the gap”? ---
**Author:** ![nathan.davenport](https://avatars.discourse-cdn.com/v4/letter/n/3ab097/32.png) [@nathan.davenport](https://forum.cirrus-link.com/u/nathan.davenport)\ **Post date:** [January 16, 2024, 2:41am UTC](https://forum.cirrus-link.com/t/does-edge-mqtt-transmission-tag-data-gets-pushed-to-mqtt-server-after-connection-is-back/495/2 "2024-01-16T02:41:56Z")
Yes Engine tag data will be back-filled if you’ve enabled MQTT Store and Forward in MQTT Transmission configuration and enabled history on your MQTT Engine tags. For more details on required configuration see [this](https://docs.chariot.io/display/CLD80/Managing+historic+data+with+MQTT+Modules) document.