Wifi speed slow on iMac but fast on iPad
My 2010 iMac running 10.10.5 has been getting very slow download speeds from my AT&T provider's modem. Speed tests show download speeds at 2.97 mbps while my iPad 3 running system 9 is showing 5.92 mbps right next to the iMac. I used to get faster download speeds on the iMac after a reboot. However, recently that hasn't made any difference.
Does anyone have any idea what is going on with the iMac?
Thanks in advance