Hello Daniel!
Hope you have a lovely day !
I'm sorry to hear that you're experiencing issues with limited bandwidth when accessing some parts of Microsoft's network.
1)To report this issue, you can try contacting Microsoft's technical support team directly. You can find their contact information on the Microsoft website.
For more information about Professional Support, please reference the following article:
Professional Support
https://support.microsoft.com/en-us/help/4341255/support-for-business
Microsoft Professional Support (pay-per-incident): FAQ
https://support.microsoft.com/en-us/help/4457997/microsoft-professional-support-pay-per-incident-faq
2)Additionally, you can try posting your issue on the Microsoft TechNet forums, where you may receive assistance from other Microsoft users and experts.
We have received your message and have relayed it to the official Microsoft team.
It's great to hear that you're willing to troubleshoot the issue to ensure your subscribers have the best online experience.
Good luck!
Rosy