Reading were behind on 13 minutes when Jon Ashton scored for the home side.
Goals though from Seol (20), Ibrahima Sonko (59) and Simon Cox (69) gave Reading a 3 - 1 lead before Ashton scored his 2nd on 77 mins, this time a penalty.
Reading comfortably held on for the victory.
Reading: Federici, Halls (Murty 46), Shorey (Golbourne 62), Sonko (Osano 59), Makin (Ingimarsson 46), Sidwell, Gunnarsson (Pearce 77), Little (Long 46), Seol (Davies 71), Doyle (Cox 62), Oster
Subs not used: Hayes, Dubois, Ujah, Rendell.