Here we go again ...
from the BBC» :
London Waterloo: Signal failure causes train delaysPeople travelling into London Waterloo station are facing severe delays caused by a signal failure.
The major signalling fault is affecting services on the South Western Main Line between Woking and Surbiton.
South Western Railway (
SWR» ) is advising passengers not to travel and seek alternative arrangements.
Network Rail said its engineers were on the site but the problem would cause disruption until 12:00 BST.
Up to six lines are affected by the signalling issue, including Alton, Basingstoke, Woking, Portsmouth Harbour and Dorking services into London Waterloo.
SWR services were already disrupted by the second day of a five-day walkout by members of the Rail, Maritime and Transport union.

Network Rail said the signal failure was affecting all lines between Woking and Surbiton, meaning trains are unable to run on this line through to London Waterloo.
Trains between Salisbury and London Waterloo will start and terminate at Basingstoke, it added.
SWR tweeted that passengers travelling on its main line should not travel.
Described elsewhere as a failure of both datalinks to the Walton-on-Thames interlocking. Now, what was it Lady Bracknell said?