The head of the Web Summit has apologised to its 22,000 delegates after a it suffered a massive wifi outage this morning.

The internet issues have overshadowed the first day of the Summit which is now the largest event of its kind in Europe.

Today’s speakers include Hollywood actress Eva Longoria, while the Taoiseach Enda Kenny will open the Nasdaq stock exchange from the Summit floor later.

More than 13,000 hotel rooms have been booked between 603 speakers, more than 1,000 journalists and 22,000 people from around the world.

They have all come for the Web Summit - now in its fourth year - and recognised as the largest tech event in Europe.

Over the course of the Summit - a thousand vegan meals will be made every day - while 2,000 kgs of cheese and 10,000 handmade chocolates will be served.

So it is clear the Summit is now a massive operation, but it has not been without its issues. Many delegates have complained about the Web Summit’s distinct lack of working wifi.

Stars of Hollywood, including actress Eva Longoria, and the sporting and technology worlds will take to the stage between now and Thursday.

While those on the main stage are talking about big ideas - it’s the smaller ones which are generating the biggest buzz.

Denis Collet is the CEO of Orderella, an app which allows users to order and pay for drinks at a bar - and collect without queuing.

Later this afternoon, the Taoiseach will ring the Nasdaq stock exchange’s opening bell from the RDS floor.

The €100m economic boost from the Summit has observers saying it will be part of Dublin life for years to come.

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