UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.79 Safari/537.36
Platform: 10718.13

Steps to reproduce the problem:
Dear all,

I hoped to report this issue to the component OS>System>Bluetooth but could not seem to select it from the 'New Issue' list.

I'm working in a development team at a multinational medical device company, extending our existing range of Android applications for professional use, to ChromeOS devices.

Our app in development relies on BLE to connect to peripherals. Yet, we're experiencing various BLE issues with ChromeOS. I have attempted to search for similar issues in the Chromium Issues list as we have, but could not find a direct match. I apologize nontheless if this issue would otherwise be reported duplicate.

Test scenario:
We tested the following scenario on three devices,  two Android tablets (Pixel C & Samsung Tab S3) and one Asus Chromebook C302C, running the aforementioned ChromeOS version.

Setup:
- Our setup consist of a Windows PC running a BLE application (BLE Peripheral Role, GATT server) and
- Our Android app, built for targetSDK 27, minSDK 24. This app connects over BLE to this Windows PC BLE application. 
In our commercial solution, this Windows BLE application is actually an embedded solution (a wearable device).

We noticed various connection issues with the Chromebook, which didn't occur on both tablets, while running the same implementation. As a consequence we decided to develop a simple application which performs a basic operation: Only connect and disconnect with the Windows BLE GATT server.
- For both tablets, this was no problem at all. It failed typically once per 50 attempts. 
- However, running the same application on the Chromebook result in only two, may three successful attempts in total. After each attempt, we were also no longer able to connect anymore to the Windows BLE Application. A Chromebook reboot was required.

We can sent you the sample application we used, but we also tested with existing apps available in Play:
- BLE SCANNER byBluepixel Technologies LLP
- Bluetooth LE Scanner app
You may use these apps as well.

Please let me know if you need more details, I will do my best to provide you with the requested information. 
I hope you are able to reproduce this issue and find out what is exactly the problem.

What is the expected behavior?

What went wrong?
Connecting / disconnecting with a BLE Peripheral

Did this work before? No 

Chrome version: 68.0.3440.15  Channel: dev
OS Version: 68.0.3440.15
Flash Version: 30.0.0.113

We have currently tested with an Asus C302C. Would it make sense to test with a Pixelbook instead (we have none in the office though). Please indicate if you believe this may be hardware related.