Went to watch TV in the bedroom the other night. Wanted channel 177 but it was missing from the guide. Looked around and several others were missing. Looked at 'Point Disk'. 110 and 119 normal signals. 129 didn't have a signal at all. Left it on 129 for about 2 minutes and still nothing. Ran 'Check Switch' and it seemed to take longer than normal. Acquiring signal took anout 10 minutes and the guide was also slower in loading. (Especially the final segment). When it finished everything was back to normal. Signal strength back to normal too. The happened on the 211k but the 722 in the LR on the same dish was working as normal so I have to discount the rain we had. (some heavy rain at times) Any idea what might have happened? Any additional things I should do?