Video Display On Smart TV via SDI/HDMI

I am using the WEB Presenter HD SDI output to feed 4 Smart TVs in the Chruch reception area. The one that we have been using for the past 2 years works ok. The other three will display the video, it cycles off and on. The configuration that I am using is as follows: Web Presenter HD SDI output to Mini Converter SDI Distribution 1X8. Output # 1 via RG6 cable to Mini Converter SDI to HDMI to HDMI 1 on TV. Output #2 via RG6 cable to Mimi Converter SDI to HDMI to HDMI 1 on TV. Loop thru via RG6 cable to Mini Converter SDI to HDMI to HDMI 1 on TV. Loop thru via RG6 cable to Mini Converter SDI to HDMI to HDMI 1 on TV.
The first TV is located in the other direction from the other three. The one that we have been using for 2 years works ok with either the original or new SDI to HDMI Converters. The other three will work ok with the older converter. So, I installed a new converter on the older TV and the older Converter on one of the new TVs to get one of the newer working for now.
Any suggestions here? Thanks
The first TV is located in the other direction from the other three. The one that we have been using for 2 years works ok with either the original or new SDI to HDMI Converters. The other three will work ok with the older converter. So, I installed a new converter on the older TV and the older Converter on one of the new TVs to get one of the newer working for now.
Any suggestions here? Thanks