So the story is:
Had a completely new install on Wednesday October 1st.
Used existing coax in the house which had been installed 18 months previously along with Cat6 Ethernet.
The coax is all RG-6Q throughout.
HR44 in downstairs den and a C41 mini Genie in a bedroom.
All house coax and Cat6 all run into a upstairs bedroom closet where the router and modem are located.
The cable from the dish comes into that closet then distributed to the 2 TV locations.,
Friday 3rd October DTV had to come out due to getting 771 errors from 6am in the morning on some channels - notably Channel 4 (NBC) Channel 11 (Fox) and most of the 200 range of channels.
Typically by around 8am - 9am NBC will start to return initially pixelated then after a further 20 seconds or so OK.
Then the others channels would start to come in.
During this entire time other channels have been working just fine e.g. Channel 5 (KTLA), Channel 7 (ABC) etc
Friday's installer said he didn't like the wall plug connectors and insisted on ripping them out and using his own bullet type connectors.
Saturday 4th - morning 6am TV's on - still getting 771. Called and arranged another service call this time escalated.
Still getting 771 Sunday morning and again Monday morning.
Tuesday 7th - DTV arrive early afternoon - by which time the problem had gone. This time, the tech said he didn't like the coax...
and insisted on changing the coax from the dish through the splitter to the SWM. This despite the coax being RG-6Q.
He reduced the number of connectors by taking the cable from the dish directly to the splitter and the Coax to the two rooms had enough slack to be able to be connected to the splitter directly. he also changed the LNB as I was initially suspecting overnight moisture.
He also insisted that the DECA had to be used as opposed to the HR44 being connected direct via Cat6 to my network, he said the C41 wouldn't work correctly unless it was using MOCA with the DECA - He did however agree that it had nothing to do with the 771 - so I let it pass.
Long story short - turned the TV's on this morning (Wednesday 6am) - and still getting 771's on some channels inclduing NBC CH4.
So once again escalated and having a 4th DTV visit tomorrow (Thursday).
I suspect that he is now going to complain that the rest of the coax in the house is at fault which I am going to dispute. I laid the RG-6Q coax and Cat 6 when the house was being remodeled and I know it was done right and done carefully.
The questions remain - why does it appear to resolve itself by around 9am for most channels then by around 10 - 11 am for some others then works fine for the rest of the day / evening.
Any good ideas as to what might be going on? The HR44 and C41 have not been swapped out. Not much else remains to check.
I haven't posted any satellite numbers as I have to assume that the tech did all these tests on one or more of the previous 3 visits in the past week... Location is 40 miles NW of Los Angeles. Is there a specific set of numbers that are key? Why for example is NBC (CH 4) solid 771 when the problem occurs but ABC (CH 7) works just fine. Another example of a 771 is channel 220 NBCSN