TL-R480T+ Disconnects internet until restarted
As the title says, i have been using it a year ago with one 35mbit and one 50mbit connection, i had cancelled 35 one and upgraded 100mbit. this year, i needed 2 internet connections again (i am working from home)so i connected a 75mbit one with 100mbit one, updated firmware version (i dont remember the old one, and i dont think it was firmware related because it started after 2-3 weeks)
Now, every now and then (which is 5-10 minutes tops) i get disconnected, from whatever i am doing as if i have no internet connection. I am connecting to modems with wifi directly, they work, i disconnect modems from router and connect to computer with wire, it works but until i restart (or restore to factory settings) TL-R480T+ has no internet connection at all.
I can connect to modems through router btw, just cannot connect to internet. i am suspecting that mtu settings are wrong (they are, as default, 1500) or 75 (main) and 100 mbits are too much for the device. Any suggestions? Advice?