HT202159 Mountain Lion download stalling at 53.25mb

I am running an iMac 10,1 with Snow Leopard 10.6.8 and purchased Mountain Lion yesterday but the download stalled at 53.25mb. I have sufficient Hard drive space and Wifi signal but it won't go any further. I tried re-lanching the App Store, then re-started my Mac and then finally stopped the download and started again but it got to the same point and stopped.
Any help would be much appreciated as I have exhausted all avenues I can think of.

I'm another who's had the 53.25MB failure issue, and it's 99.9% certain to be a router issue. If you're in the UK then the chances are you're with BT for your broadband. As mentioned above, there is a known issue with the 2Wire BT Business Hub, see link below, and probably other routers too.
http://btbroadbandandhowtosurviveit.blogspot.co.uk/2012/08/bts-2-wire-woes.html
"If you want Mountain Lion, or any other large download, then you'll need to get another router, or firmware upgrade if available." That however can be a pain, and if BT don't play ball then an expensive one. There is another solution however, and one that means no contact with BT, call centres or your local PC World ...
What I did was put in an old BTHomeHub that I had lying around to get it passed the 53.25MB point, and then paused the download while I reinstalled the 2Wire BT Business Hub. I then resumed the download and the whole 4+GB was on my iMac in a few minutes (well just over the hour). If you don't have a spare router, borrow one, you'll only need it to get the download passed the 53.25MB stage. For completeness, I waited until it was at about 150MB before pausing.
Hope that helps some.
A2TC
Want to know how to fix all known PC issues...click here.

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    A2TC
    Want to know how to fix all known PC issues...click here.

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