There is definitely merit in submitting a ticket if you are having issues with the game or the client.
From experience, consistent disconnects (no attached to server issues) are predominantly related to driver updates on the GPU. Please double check this.
If the disconnects continue, please perform a WGCheck (which details the technical specs of your PC) and submit that with a ticket into support so they can further investigate if there is a incompatibility with your hardware.
Detailed instructions for this can be found: https://na.wargaming.net/support/en/products/wows/article/19498/