IE is obsolete. You have to go to Edge now.
I have a laptop that I use at home for records and some games and such. No internet connection at home other than my cell phone.
Last time I took the laptop to the library to use their WiFi IE told me I was not connected while the taskbar showed me as connected.
So going by what you have said IE is probably my problem.
Using Windows 10 btw.
Thanks.