I've had a mega problem w/ that it seems that Dish interferes w/ T-mobile internet.
If my mom is watching TV using Dish. My computer constantly drops the internet every 5 seconds, if that. And reconnect, & it drops, & reconnect & it drops - constantly.
I don't know how to create a hotspot w/ my cell phone.
Maybe that would solve it?
Are both these services running on the same cables to the users. They should NOT be.
Is your T-Mobile wired or wireless internet?
How long has this been happening (just started, since Dish was Installed, since T-Mobile was installed, forever)?
Were there recent changes made to either system?
What Dish Network system do you have Hopper 3 and Joeys, Hopper with Sling and Joeys, etc.
How is the TV connected to the Dish equipment, HDMI, coaxial cable (input to TV tuner), composite (Red/White/Yellow), component (Red/White audio and Red/Green/Blue video)?
If it is interference, the signal has to somehow get out of one system then into the other both of which are unlikely unless there is damage somewhere.
I would think because the Dish to receiver activity does not depend on whether the TV is being watched that if it was interfering it would be constant, not relegated to when TV is being viewed. Even if the
Similarly internet activity is is not solely dependent on whether you are on your computer.
Problem may be in the TV not the Dish equipment. Are they close to each other?