Daeth y gweithgynhyrchwr o hyd i newidiadau i gyfluniad y waliau tân er mwyn osgoi amgylchiadau tebyg eto a chafodd y newidiadau hynny eu cymhwyso'n llwyddiannus i'r offer wal dân am 7.30 ddydd Mercher 31 Ionawr. Mae newidiadau eraill wedi cael eu gwneud hefyd er mwyn monitro gweithgarwch waliau tân yn well.
The manufacturer identified changes to the configuration of the firewalls to avoid a similar circumstance and these were applied successfully to the firewall equipment at 7.30 on Wednesday 31 January. Further changes have also been made to provide greater monitoring of firewall activity.