News of the Palace's struggle with social media comes after claims that Meghan and Kate had been embroiled in a lengthy rift, driving the two apart, after it was announced that Prince Harry and his wife would be leaving London and moving to Windsor.
The pair decided to put their differences aside at Christmas as it was said they enjoyed a game of Scrabble together.
The wives of Windsor, whose "differing personalities" were said to be at the centre of the rift, celebrated Christmas with the Queen and the rest of the royal family in Sandringham.
Now sources say that the continuous trolling from social media users has become such an issue in recent months that the Palace has now turned to Instagram in a bid to learn all they can in order to help them tackle the abusive comments.
The social networking company has a team dedicated to helping high profile Instagram users cope with issues such as these, and particularly around the monitoring of unpleasant and abusive comments.
A Palace source said: "It follows a Kate vs Meghan narrative and some of the worst stuff is between Kate fans and Meghan fans.
"Arguments about who looks more appropriate, for example, that turn into personal attacks on other users. It's creating a supercharged atmosphere and everyone can join in, but what are the consequences of this?"
In some posts Kate has been called 'boring', while Meghan has been targeted for being "too slim" and for "touching her baby bump too much".
Much of the aggression on social media from fans has been from those who have taken sides between the Kate and Meghan following reported tensions in the royal household last year.
There were claims that Kate broke down in tears following Princess Charlotte's bridesmaid's dress fitting, ahead of Meghan and Harry's wedding in May, as well as suggestions the pair had clashed over staff.
Sources had also claimed that Meghan was "fed-up" of not being able to "stand up for herself" as the demands of royal protocol dictate she keeps a dignified silence amid rumours of tension between the sisters-in-law.
A source previously told the Daily Mail's Rebecca English: "While there are some tensions behind the scenes, Kate is pretty unflappable and nothing has become bad enough to make Harry and Meghan want to move out.
"People are genuinely pleased to see them so happy. The truth is that there simply isn't enough room at Kensington Palace for them and I know they have been looking at Windsor as a possibility since before the wedding."