Thanks in advance to anyone who may help! I have a strong signal from both 110 and 119 (105 from 110 and 102/3 from 119) yet I get signal lost on about half my channels. However during different times of day certain channels come in then later they go away. Some channels always work, some rarely, most go in and out. The Dish Network User guide says it is either obstruction, bad LNB or bad cable. How do I tell? Does the strong signal rule out obstruction? The view looks clear to me but it is possible there is obstruction since it goes through a hole in the trees. Could it be a bad LNB? How do I tell? Could it be bad cable? The line in unpinched with no kinks or visible issues. Does cable just go bad after working fine for two years? This was professionally installed but they have gone out of business and the nearest guy (140 miles) wants $200 in travel just to show up, so I'm on my own.