I had the unfortunate experience of using Network Solutions for hosting. It wasn't my choice. I came into a project that was already underway. We had a Drupal site hosted there. It was terrible. The server would hang for hours at a time. Support was clueless, they would get around to the ticket around 20 hours after submission, usually just closed it without comment, some responses said there was something wrong with our Drupal install (finger pointing their best skill). This went on for more than a week. Moved the site to another host and never had downtime since. I demanded a refund and eventually got it.

In my experience Network Solutions is incompetent as a hosting service. I'm not surprised at they tried to blame this issue on Wordpress.