No. Service Desk (SD) does not provide such a service to check the setting of user's router configuration.
Please see "Appendix 2. Example of Connection Configuration" listed in "arrownet v2 Guidelines for NW Connection(Common)" posted on System Documents Site.

[System Documents Site]
URL: https://faqsd.jpx.co.jp/faq/show/2086?site_domain=en_system_documents

- arrownet v2 Guideline for NW Connection(Common)