Honestly mate my HG633 gets around a million errors on the wireless side in a few hours. Throughout for me is stuck around 60Mbps and 2.4Ghz often drops out. Talktalk forums are plagued with users complaining of wireless error build up on the HG633.
My HG635 gets 350Mbps on internal network transfers (that's more than 4x faster than the 80Mbps product). It has also not been rebooted in 2 months and has no issues.
It gets range where my HomeHub 5 cannot, in two back bedrooms, both routers are side by side.
It has better coverage in my home than the nethear nighthawk at £140.
I cannot recommend it enough. You can grab one on eBay for relatively cheap, probably less than £20 on auction and I think it'll solve the majority of your issues.
As I say Talktalk do not supply them anymore, but I have used all sky routers, the Virginmedia superhub, superhub 2 AC, superhub 3, HomeHub 4, 5, 5A, netgear nighthawk, TP Archer C9 AC router. The HG635 has proven to be the most stable router I have ever used to date, in my entire life. I would say it's the best ISP supplied device I have ever laid my eyes on.
The HG633 by contrast I would rate as the lowest, alongside the original Virginmedia superhub. It really was such a headache and since boxing it up my stress levels have dropped significantly.
It might be ok at ADSL2+ speeds but there is something seriously wrong with it. Interestingly all the reviews online ive seen for the Talktalk superhub are based on the HG635, not the 633.
Bite the bullet get a 635, seperate the 2.4 and 5Ghz bands and jobs a good one.
Just verify your line is not dropping before buying as I suggested.
Edited by ukhardy07 (Mon 11-Jul-16 21:22:41)