I have 6 to 7 satellites locked in and I will suddenly get a weak satellite signal and it will drop into atti mode after a few minutes it will return to normal. This is the first time I have flown at dusk. Could that have something to do with it

The number of satellites you get has nothing to do with the time of day.
If you are flying the Standard, you need to have 6+ sats to fly in GPS.
The number of sats visible in your sky varies as the sats orbit and depends on how good the sky view is.
If you have trees, buildings or mountains blocking parts of the sky this may reduce the number of sats visible.

Labroides' idea is correct. It is recommended to fly your drone in open area without tall buildings.

There are no buildings etc. I'm in the middle of nowhere. I have never had an issu like this before.
I usually have 9 to 11 satellites at this location

rcdad2@yahoo.co Posted at 2016-7-2 20:35
There are no buildings etc. I'm in the middle of nowhere. I have never had an issu like this before. ...

You may have just been unlucky to catch a time with a poor spread of satellites.
The sats are always moving .. they aren't locked up there.
If a couple are low on the horizon, you can drop below 6.
It doesn't happen often but it can occasionally.

I have the same.  Flying with 12 or 13 satellites one second and one second later none and switches to anti.  Distance 50m and alt 40?  Is a new drone.  No crashes.  Just started to happen

fansf8484246 Posted at 2018-9-19 19:51
I have the same.  Flying with 12 or 13 satellites one second and one second later none and switches to anti.  Distance 50m and alt 40?  Is a new drone.  No crashes.  Just started to happen

What sort of location are you flying in?

fansf8484246 Posted at 2018-9-19 19:51
I have the same.  Flying with 12 or 13 satellites one second and one second later none and switches to anti.  Distance 50m and alt 40?  Is a new drone.  No crashes.  Just started to happen

If it's under warranty, I would contact DJI.  

Good luck