For the second time within a few days the centre of Llangollen has been left without an EE mobile phone signal.
The first loss of signal took place last Friday and Saturday and lasted for a number of hours on both occasions.
Latest blackout came this morning (Tuesday) at around 9.30am.
Responding to the first signal loss, EE's press office told llanblogger: "An electrical fault resulted in some disruption to service in the Llangollen are on Friday and Saturday.
"The mast was fixed on Saturday night, and normal service was resumed. We apologise to any customers affected."
An EE spokesman said engineers were currently looking into the second problem.