I have been calling TTBusiness tech for the past 8 weeks concerning my download speed which slowly drops off in late afternoon from 28mbs to 0.56mbs by around 9.00pm, every day. (I am on fibre up to 38mbs). A little like a battery running down.It takes at least 2 minutes to load a single web page! I have spoken to no less than 27 different technicians.I have sent in numerous trace and ping results plus download speed tests.The network people admit there is a fault somewhere but the tests they run cannot find it. I have tried,as suggested, 3 different routers and no less than 5 pc's.All with the same result.I have been told on 4 different occasions that the problem had been passed to Open Reach to check all external lines and internal connections and to wait in for them.Of course they never arrived as apparently they had never been informed.Everyone I speak to just sends me round in circles. TTB admit that from looking at the test results I subitted there is a fault but seem reluctant to get to the bottom of it. It's absolutely pathetic.It appears that when things are working TTB take the credit but when things go wrong you're on your own. I have just spoken to someone at TTB this morning to get the latest update and I am awaiting a phone call with the latest installment of this fiasco ( a phone call I will probably not receive judging from past experience).Absolutely a case of buyer beware.