Browsing speeds could slow over the next week as old hardware is upgraded to handle the net's growth, says networking giant Cisco.
Some older kit has hit an upper memory limit in the number of routes it can use to despatch data around the world.
In the last few days the number of possible routes breached that upper limit which might mean those routers start to struggle.
Already some firms are reporting users are having problems.
http://www.bbc.co.uk/news/technology-28786954