# Ignition Edge, Modbus TCP Tags Reading On OPC Quick Client, Showing As "Bad" On Designer

**URL:** <https://forum.inductiveautomation.com/t/ignition-edge-modbus-tcp-tags-reading-on-opc-quick-client-showing-as-bad-on-designer/84351>\
**Category:** Ignition\
**Created:** [January 16, 2024, 9:00pm UTC](https://forum.inductiveautomation.com/t/ignition-edge-modbus-tcp-tags-reading-on-opc-quick-client-showing-as-bad-on-designer/84351 "2024-01-16T21:00:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Blake\_Guidry](https://avatars.discourse-cdn.com/v4/letter/b/a5b964/32.png) [@Blake\_Guidry](https://forum.inductiveautomation.com/u/Blake_Guidry)\
**Post date:** [January 16, 2024, 9:00pm UTC](https://forum.inductiveautomation.com/t/ignition-edge-modbus-tcp-tags-reading-on-opc-quick-client-showing-as-bad-on-designer/84351/1 "2024-01-16T21:00:46Z")

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Hi,

I am trying to add Modbus Tags onto this Ignition Edge Project. Through the gateway, on the OPC Quick Client I am able to read these tags and get proper value.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/c/1/c1f49eef8235f07f8d93ce9e34cac2715c6e39ad.png)

But on the Designer, I am getting tag value as "Bad".

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/4/1/41dc12409365811259d4553a7b03bedf3abd031b.png)

I assuming this is a Gateway Issue? but I need some help figuring out where the problem is, and how to resolve.

When trying to push a save on the Edge Tag Provider, I receive the error "Failed to update tag provider. Gateway reported that it could not update tag provider"

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<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [January 16, 2024, 9:15pm UTC](https://forum.inductiveautomation.com/t/ignition-edge-modbus-tcp-tags-reading-on-opc-quick-client-showing-as-bad-on-designer/84351/2 "2024-01-16T21:15:29Z")

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If you have multiple subscribed tags with small gaps between their addresses, Ignition will try to grab the whole bunch in one request. Some devices don't allow access to addresses that have no tag assigned, and Ignition's optimization breaks. Turn off the "span gaps" setting to mitigate this. (IIRC, Micro8xx is one of the lame devices that behaves this way.)