540 Solar Powermeter issues

Hello. I’ve been having issues with my 540 Solar since January of this year with it not showing my power output.  The only fix I’ve been able to get to work is to completely reset the 540 settings and reinstall everything. It’ll work for a couple rides then it’s the same issue. I’ve had this same problem with my other power meters that are different brands as well. Any help is appreciated!  Thanks!