Frequent disconnections all the time

Have been with slingshot for a long while now

We have vdsl and get around 50 down 10 up so speeds arnt bad

We have the slingshot supplied modem which is the vb104w modem router and the Internet just stops working. I goto check the router and the Internet light is flashing on off red. This requires a restart of the modem to get it to start working again. The dsl light stays green so not losing connection there just the Internet light goes red

What is this problem it is becoming frustrating to say the least to keep dealing with this

Any help will be greatly appreciated

Let me know if you need more information from me