Deutsche Telekom is refusing to rule out external foul play after around 900,000 broadband customers with “certain routers” have been hit by coverage outages since yesterday afternoon (27th November).
“Based on the error pattern, we cannot exclude the possibility that the routers have been targeted by external parties with the result that they can no longer register on the network,” the company said in a statement.
The number of affected customers is now decreasing significantly, the Germany-based operator said, while its network is fully operational.
However, it said also it is struggling to pinpoint and resolve the issue.
“There is no error pattern: some customers are experiencing temporary problems or very marked fluctuations in quality, but there are also customers for whom the service is not working at all,” the statement read.
“Experts from Deutsche Telekom and the router manufacturers have already been working on a solution through the night.
"In case of problems, we still recommend disconnecting your router from the network, even if this did not necessarily have the desired effect yesterday.”
Deutsche Telekom is offering customers with a mobile contract a free ‘day-flat’ pass to use its mobile broadband network.
Those customers who do not have a mobile contract are being advised to go to DT shops.
In total, the operator has 20 million fixed network customers.
It has dismissed claims the metropolitan areas have been most affected.
“There are no localised focal points,” it said. “The fact that the error pattern occurs more in metropolitan areas is due to population distribution, which means it is purely a statistical conclusion.”