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Handset maker Samsung has acknowledged that there is a problem using the Galaxy S4 on some wi-fi networks that use D-Link routers.

The company confirmed to ZDNet that the Galaxy S4 had problems connecting to, or staying connected to wi-fi networks that used some D-Link model routers.

"This is a problem caused by firmware stored on a specific access point in D-Link routers. Customers should update their firmware to the latest version or reboot the access point," a Samsung spokeswoman said.

Samsung Galaxy S4 owners have taken to a number of online forums to complain of the problem, which seems to most often affect D-Link model DIR-655 and DIR-855 routers, among others. Users in a number of different countries, or with different mobile operators and broadband providers, complained of the same issues.

"Is anyone experiencing wi-fi connection problems with the S4? Picked mine up yesterday and when I connected to my home wi-fi, it would connect fine and work for a few minutes then completely drop the connection. I would need to disable and re-enable wi-fi for it to connect again only to have it drop after a few minutes again. This has been going on all night yesterday and all day today," Will822 wrote on Samsung's GalaxyS4forums.net.