Why my internet connection is slow?

[Vladislav Vinogradov]

...when I in a building?

 

[Javier P]

Hi, welcome to the forums! Which phone do you have? Does it happen while on WiFi, mobile data or both? Do you get good signal inside that building?

 

[Vladislav Vinogradov]

Thank you for your answer. I use LTE or HSPA and I often see the internet icon switching to/from LTE and HSPA. Why does it happen?