Don Johnson

Some ideas that may help.
1. In 1 Tim the concern of the letter is stopping false doctrine that is being taught. In some cases this is done by disfellowshipping the person, a person that I am not to fellowship with as a believer cannot teach me anything. In other cases, it is just to stop the false teaching, this is whatteaching means in 1 Tim 2:12, it does not need to be repeated that it is false teaching, Tim knows exactly who is being referred to that he should not currently permit to teach. In other words to rip 1 Tim 2:12 from the context of the whole letter (and try to make it a self contained mini-teaching) is a mistake.
2. The hesuchia in 1 Tim 2:12 ties back to the hesuchia in 1 Tim 2:11. This repeat forms an inclusio and serves to tie these 2 thoughts together. This means 1 Tim 2:12 should never be even discussed apart from the tight coupling with 1 Tim 2:11. Of the 2 verses, verse 11 takes prominence as it contains the imperative.