app updates disconnect internet
I've been having trouble for several months when updating iTune apps on my iMac. Some downloads finish, but often the process breaks my internet connection. I have Fairpoint as a provider, using a Comtrend router. Many tech visits have confirmed no wiring problems, and recently was told that the techs have seem many similar connection problems with Mac products. They don't know where the issue is but it is most repeatable when updating apps. I'm running Yosemite.
Any suggestions?
iMac, OS X Yosemite (10.10.5)