Problems with wireless tether

[o2bnclemson]

So I rooted my TMO S4 and was able to wireless tether without much of a problem, just like I did on my old Thunderbolt. But now when I try to tether my tablet (Nexus 7) I frequently get an error, Unable to Authenticate. Last night it worked after several tries, tonight, not at all, so far, after many tries, restarts, reconnect attempts, etc. This is driving me nuts. Any ideas on what's going on and how to remedy it??

Sent from my Galaxy S4