Some owners of the newly-available iPad have reported problems with connecting their devices to wi-fi.

Hundreds have complained about weak signals on the tablet computer.

Apple acknowledged on its support page that "under certain conditions, iPad may not automatically rejoin a known wi-fi network".

It offered a fix, but suggested that it was a router issue, despite some users saying that other devices worked fine on the same wi-fi connection.

Typical comments on the Apple support page included Dr JB who wrote: "Wi-fi reception seems weak with slow downloads."

prb44t replied: "I'm having the same issues. Weak signal on the iPad, same spot iPhone works great. Very frustrating."

But others reported that they had no problems.

Some speculated that the problem might be related to the position of the wi-fi antenna on the device, while others said it could be a software bug.

Apple said that the problem could be caused by dual-band routers and suggested users created a separate network name for each band.

But this will not solve the problem for everyone, pointed out Adam Leach, principle analyst at research firm Ovum.

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