I have a IPC-HFW5241E-Z12E that I use for LPR. For the first 6 months the camera worked great. Recently the camera started to require constant manual auto focus. I think its happening when it switches from night to day. Once I login to the camera and click auto focus, it clears back up. Its becoming a regular task now and its very annoying. I have tried looking for a firmware update but have been unsuccessful, its currently running V2.800.0000000.8.R, Build Date: 2019-09-02 . Any help would be welcomed.