Mapping and GIS Solutions Community

Good day,

I am hoping that someone can assist me. I am having some serious difficulties with my Handheld device out in the field. I am constantly being signed out of field maps on my Trimble TDC6000. There are no breaks in the internet connection out in the field as it has been tested and results show it remains stable as confirmed by our IT department. We use a FortiClient connection for authentication and there is no issue there either as the connection also remains stable.

Everything was working fine in the initial stages but a few months ago this has been a constant pain because I have to sign in every few minutes, sometimes its lasts seconds. I have updated all applications and yet still the problem still exists. The constant request for signing in online happens for field maps and this unit is used on a daily basis. A DA2 device is also used in addition to this unit, and it does not require signing in so frequently which means that the issue is with field maps.

Any assistance to help me dealing with this issue would be greatly appreciated.

Darton,

You are probably not configuring things incorrectly in TMM or Field Maps or Both. Currently, if on the latest version of TMM and FM, you setup TMM ONCE and never open it again (unless using on-demand hours). Then, in FM settings, set the location provider to the DA2 and supply antenna height. Lastly, you'll have to setup your transformation via the profile. This depends on your locale and is a one time setup. Finally, ESRI FM will invoke TMM and the order of operation after setup is as follows:

1. turn on DA2
2. after about 10-15 seconds, open FM
3. Once accuracy is achieved, tap blue plus in bottom right
4. rinse and repeat. 

The key is to NOT connect in TMM after you've set it up ONE time. Even if using on-demand hours, you would ONLY open TMM to start the hour while staying DISCONNECTED from the receiver in TMM. Let ESRI FM manage the connection. 

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Zach Edwards
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Have you tried uninstalling and reinstalling Field Maps? You'll have the pleasure of having to recreate your Location Profiles. ;)

We had this same problem a while back.

 @Zach Edwards - maybe your response was intended for a different thread? Opening and closing TMM should not cause Field Maps to not store the authentication token. 

Paul, nope. This was intended for this thread. Field maps will invoke TMM. Therefore, you should never explicitly open TMM in this process. It has been this way for years. In the next release of field maps, you'll be able to open both and will be connected in both. That will come sometime in August. That being said, you could technically open TMM, but you would not want to connect to the receiver. 

Thank you very much guys. I actually thought I was online in this. Joel Cusick and Paul, I will take your advice and give this option a go in uninstalling the app. I will let you know the outcome as soon as its done.

@Zach Edwards - are you meaning the user is being logged out of ArcGIS Online in Field Maps because he opened TMM then opened Field Maps (when not needing to because the TMM configuration had already been completed)?

I did not see Step 2 (from your first post on 6-14-25) on the Get Started page for TMM (linked below). Would it make sense that this step be added?

https://help.fieldsystems.trimble.com/trimble-mobile-manager/get-started.htm

Edit: Does Step 2 apply to all environments (Android, iOS)?

Edit: Step 2 makes sense...we are waiting for the GNSS to establish a position.

Thanks for your help, Zach.

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Paul Lohr
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I will go through your recommendation, Zach Edwards, first. Will test out the process following the exact steps you provided because, in backtracking, I don't think that anyone knew that opening TMM while field maps was open was off limits. Testing it out this specific way now is a priority, and as I originally mentioned, I will report back on the outcome.

To Joel's post, everything is up to date on the device, and yes, I am using Android.