Having researched a number of web sites alignment angles we took a 60cm (that a friend had previously used in France) satellite dish, Sky decoder, card, satellite finder contraption, compass etc to the south of France and tried to point it at satellite Astra 2 to receive Sky. We gained very good signal strength, quality and lock indicator but no network ID or transport stream confirmation. We are confident that the dish was aligned to 28 deg east of south (between two tall buildings) with the satellite finder confirming signal strength in the vertical and horizontal.  Can anyone help?

You don't say where in France it has previously worked OK.

Maybe the original operation was in a beam covering UK and northern France and now you have moved out of that beam you no longer see the previous good signals.

Review https://www.lyngsat.com/28east.html paying attention to the contours on the beam coverage maps.

You have obviously pointed at some satellite but I would not rely on an approximate magnetic compass azimuth to verify its identity.  If your measured  elevation matches the calculated value then you are likely within 5 deg either side of the wanted satellite.  Try the adjacent ones each way. Calculate your angles here: .Pointage antenne France

Best regards, Eric.