Land Rover Disco II, 2001, 190,000 miles

Have been slipping in and out of limp home mode for a few days. Have a new battery and alternator fitted, thankfully still under warranty.

But also experiencing electrical problems, such as electric windows, ac not working occasionally.

Read the earlier thread, but does not seem that similar to my situation, nothing changed recently, not flooded etc.

Hoping it is a loose connection or dirty connectors somewhere?

Any advice?

Regards