can't access internet I get message stating webpage not available because DNS lookup failed
Is this all webpages, or just one specific page? Are you using the phones native browser or one that you downloaded?
I get it a lot, too.
It is browser independent. Rebooting the phone usually "fixes" the issue.
I'm chalking it up to ANOTHER of KitKat's new "features" on the S4, like the data instability "feature" and SMS instability "feature".
The phone was perfect before 4.4, now it's a real bother to use at least a few times a day. That would be for BOTH the S4s on my account, BTW.
I'm getting a lot of Sprint flashbacks. Stuff like this is why I switched to Verizon. Now I'm starting to wonder what the difference is.