The first commuter train from Oxford Parkway has arrived in London seven minutes late. Signalling problems on the Marylebone line led to minor delays.
The South's commuters are facing more disruption because of a strike by London Underground workers.
Services stopped on Wednesday evening and are not expected to resume until Friday morning.
The second walkout in the space of a month comes amid a row between unions and Tube bosses over the launch of an all-night weekend service, due to begin on 12 September.
Hundreds of traffic jams have been reported in London long miles of tailbacks as the capital was hit by travel chaos.
Sussex Police are appealing for help to find a 16-year-old boy who has gone missing from Horsham. Celso Dias had been staying in the Sussex town, and was on his way to Brighton when he was last seen on the morning of Thursday 28th May. He was travelling by train and told the person he was with that he was going to use the toilet, but failed to return.
The teenager is originally from London. Police say he may have got off the train at Haywards Heath and travelled to the Capital.
Sussex Police are appealing for anyone who has seen a teenager matching Celso's description or with information about Celso's whereabouts to get on touch. The police can be contacted via email on email@example.com or telephone by calling 101 quoting serial 369 of 28/5.
Former gangster "Mad" Frankie Fraser has died at the age of 90, his former associate Eddie Richardson said.
Fraser had been kept alive on a life-support machine following a hip operation.
The south London hard man was part of Charlie Richardson's gang who were arch rivals to the Kray twins.
Ronnie Kray was a patient at Broadmoor Hospital in Berkshire while Reggie spent time at Parkhurst Prison on the Isle of Wight.
Fraser also spent time at Broadmoor Hospital.
Thousands are expected to take part in the demonstration which is thought to be the biggest since 2010. They're campaigning against fees and cuts and calling for free education. Two further days of action have been organised for December.
A major signalling problem in the Wimbledon area blocked both of the lines away from London Waterloo - all lines now open again. South West Trains are making changes to services to try and mitigate delays._ _
- London Waterloo to Dorking services will not run in either direction from 13:24 until further notice.
- London Waterloo to Hampton Court will not run in either direction from 13:06 until further notice.
- London Waterloo to Guildford via Cobham services will call additionally at Berrylands in both directions.
- Train services between London Waterloo and Salisbury/Exeter/Bristol will not run between Basingstoke and London Waterloo. Customers will need to change trains at Basingstoke to complete their journey.