Please follow the below guideline to set up the 3D Sync Out Reference setting.

If there are four projectors:

1. The first projector that is connected to the laptop or the source: select "Bypass"

2. The second and the third projectors: select "Bypass"

3. The last projector: select "3D VESA"

The maximum distance supported by the wired remote control is 10 meters.

The maximum distance supported by the wired remote control is 10 meters.

As Adobe will no longer support Flash Player after December 31 2020, access to Flash Player will be removed from all browsers gradually, including Internet Explorer and Google Chrome. As a result, the Crestron RoomView service from BenQ, which is Flash-based, will also be discontinued. BenQ suggests using the following alternatives to manage and monitor multiple projectors. 

1. Crestron RoomView Express: this software can be downloaded from Crestron’s official website.

https://www.crestron.com/resources/get-roomview

2. BenQ DMS Local: this software can be downloaded from the official BenQ website. Please reach out to BenQ service for further assistance with installation if needed.

https://www.benq.com/en-us/business/projector/dms-local.html

Please check the following settings to correct this issue. 

1. If the source gives the correct 3D information to the projector, the projector will switch to 3D automatically.
   If your source is from PC or steaming content, please select the correct 3D format via OSD Display > 3D > 3D mode.
2. Check the user manual and make sure that the resolution of your content supports 3D.
3. Press the DLP Link button on your 3D glasses to resync the projector and 3D glasses.
4. Please try to change the HDMI EDID setting to Standard.
5. Make sure that no other Projectors are sending DLP Link signals in the same room.
6. Watching in a relatively dark environment to avoid being influenced by other light sources.
7. Check the battery level on your DLP 3D Glasses
8. Adjust the watching distance and screen size within a normal range(Specs)
9. Stay in a fixed position, and try not to move too far/quickly on your head/3D glasses.
10. Try to adjust a colorful setting on the projector and avoid external light direct to your 3D glasses/screen.
11. If it's still not working, the issue might be caused by Hardware margin. You can switch to another projector or 3D glasses for a try.

The projector's filter should be replaced. Please replace the filter and reset the timer, and the flashing LED will stop.

Please follow the below guideline to set up the 3D Sync Out Reference setting.

If there are four projectors:

1. The first projector that is connected to the laptop or the source: select "Bypass"

2. The second and the third projectors: select "Bypass"

3. The last projector: select "3D VESA"