your connection is now on 'fast' instead of 'interleaved' hence the reason for no more fec errors but you may find that the crc/hec errors and errors seconds increase faster than they did before due to interleaving being turned off.
just keep checking your stats but no manual router resets
any problems then just come back and repost new stats
ok i am wondering what are they doing with my bb?
stats still look fine with good 20mb speed. error seconds are high but they have not reset when connection reset so misleading
thats whats making me confused as at the moment it is stable on this at the min, thought i be left on fast but i dont think so, i not even manually resetting it so something is reseting it!