If your wireless (or wired) network goes down then we will have to attend on site which involves a small call out charge.
We will attend with our own laptop to find the cause of the problem and if it is the router box, then we can either repair or replace it or we can re-run new wiring if required.
Sometimes it could be an problem with the wireless card in your laptop or PC or a broken router box aerial. Both are easily solved with replacement of the faulty item.
But the most common network problem is forgetting your security code! So keep a record of it somewhere safe and avoid a needless call out charge!