Connection Timeout

Installed a z-wave fan switch. It shows up in my list, but is listed as not connected. I can still turn it on and off, which brings it online for a few minutes. However, then it says connection timeout / connection lost. Any help is appreciated. This switch is one floor above and to the opposite side of our house, thought maybe a repeater would help solve, but I have the fan light switch right next to it working perfectly. Thanks in advance - this is driving me nuts.

If you haven’t executed a z wave repair since the switch was installed, I would try that.

Appreciate the suggestion. Will try that now.