Can anyone help with HTC 10 not synching after Nougat install?

My Gmail account is no longer synching and my battery power has been really impaired since Nougat was installed on my phone. I have read the threads here but don't see anything recently about what to do. Any suggestions?

I would recommend a full restore after any major update. Be sure to back up your important stuff. Sometimes, without explanation, some devices require a restore after these updates. I "always" do a restore after every update....just to avoid issue like you're having. Hope this helps!