Can´t Catch MeTV in SES1

Hi Guys.
I have almost 3 months with a MicroHD receiver and my 1.8m Centered LNB Antenna pointing to the Galaxy 16 satellite. Beside the centered LNBF I installed a second one, catching channels from Galaxy 3C (basically CBS and Univisión). Some weeks ago, eventually I moved slightly the antenna to the West and could catch MeTV1 and MeTV2 on SES1 with a 70 Quality Signal with the centered LNBF. Then, I moved again the dish back to the Galaxy 16. These last days I tried to locate the SES1 again, but this time I had no success. I can´t find the channels anymore. The MicroHD remains showing a signal strength of 45 an CERO Quality, without variation.
I observed before that when I moved back the dish to the Galaxy 16 sat , channels were viewed instantly, except the NBC13 from Casper. This channel took sometimes hours to get catched (without moving the dish anymore). I don´t know if something similar could be happening in my system with these two MeTV channels.
The dish pole is perfectly vertical and the LNBFs right where I installed them from the beginning.
Any idea what could be happening ?

Thanks Guys.
This morning I dedicated almos 3 hours trying to find MeTV in SES1. I used my MicroHD with the channel already scanned (As I told before, I was watching these channels some 2 months ago) to try to find the signal, and nothing happened. Then I used my old Pansat 2700A. This receiver has a very good and fast response for showing changes in the signal bar indicator when you catch a Transponder beam (much better than MicroHD for this issue). Nevertheless, happened the same: No signal found. Tired and frustrated, finally aimed the dish again to Galaxy 16.
My conclusion here is that in my lattitud (29N, 106W), I will need a bigger dish (3m) to catch this signals whithout problem. I just tried and tried because I was watching those channels before. Same thing happened with the channel "eScapes" in G16. 2 Months ago I was able to catch it, and now it is rare when the MicroHD can lock it. Maybe the strong winds of February affected the parabolic shape in some way.
Greetings...