Winegard SWM Dish keeps Searching-won't lock on

i want to update our situation:
winguard sent a new lnb, it was replaced but didn't help us.
we then replaced the coax cable and now we have our satellite working again!
it was an inexpensive and fairly easy fix...the hardest part was diagnosing.as frustrating as this whole thing was, i do want to say a huge thanks to everyone who posted a response but most importantly, to DENNIS12 who contacted me personally and took the time to help...thanks to this group and to Dennis for sharing !!!!!