Resolving host message

I've had BT Infinity for a month now and it's mostly fine, but every now and then the connection dies and a message of "resolving host" appears in the bottom left of my internet browser. It usually only lasts a minute or two and then I just refresh and it works fine again. This is on my desktop computer which is an iMac.
But the weird thing is that when this happens, if I go on my phone - which is connected to the same BT Hub - the internet works fine.
So why would this issue only happen on my desktop computer? Both my iMac and iPhone are connected wirelessly to the same hub. Has anyone else come across this issue? It never happened with my previous internet provider so it can't be a fault with the computer.

Its probably wireless interference.
Try changing the wireless channel on the home hub, there is a choice of 13 channels.
If its a HH5, make sure that smart setup and smart wireless are disabled.
On the iMac, network connections, disable IPv6, as that can cause DNS problems.
There are some useful help pages here, for BT Broadband customers only, on my personal website.
BT Broadband customers - help with broadband, WiFi, networking, e-mail and phones.

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    I have had a good service until recently but now Constant Resolving Host Issues. Pages slow to load making it difficult to use. 
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    BTCare Community Mod
    If we have asked you to email us with your details, please make sure you are logged in to the forum, otherwise you will not be able to see our ‘Contact Us’ link within our profiles.
    We are sorry but we are unable to deal with service/account queries via the private message(PM) function so please don't PM your account info, we need to deal with this via our email account :-)”
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    BTCare Community Mod
    If we have asked you to email us with your details, please make sure you are logged in to the forum, otherwise you will not be able to see our ‘Contact Us’ link within our profiles.
    We are sorry but we are unable to deal with service/account queries via the private message(PM) function so please don't PM your account info, we need to deal with this via our email account :-)

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