My wife's OS X 10.7 iMac starts to download a site with safari. The blue pr ogress line move a little then stalls. I have no problems on my OS X 10.10 MacBook Pro. This has been happening for about two weeks. She often has man y apps open at the same time but the iMac has 12GB of memory. She does not have many safari windows open at the same time. She gets similar results wi th Firefox.
Both are using wifi. The router is a D-Link DI-624. The router is closer to the MBP than the iMac.
Any help much appreciated.