We are using below EC2 instance in AWS environment for our project
Now as we are using application where support team is suggesting to use R5 servers to solve issue related to network connectivity issues.
I can see features in below link but not sure which one will resolve network issue.
https://aws.amazon.com/ec2/instance-types/
This feature ? With R5d instances, local NVMe-based SSDs are physically connected to the host server and provide block-level storage that is coupled to the lifetime of the R5 instance
I would assume that the recommendation to switch from T3 to R5 for network connectivity reasons is because a T3 instance has "up to 5Gbps" network performance, while an R5 server will have "up to 10Gbps" or more depending on the specific size you pick.
These values are listed under the column labeled "Networking Performance (Gbps)" on the page you linked.