I encountered such a problem, my Baikal giant (2 Gh/s) began to lose connection (blue light blinks) with the Internet (connected to the router by a cable), only the physical restart of router and miner helps for a few hours. In the same network there is a Baikal CUBE who does not lose connections. What could be the problem? I tried to change the access point, but the problem remained.
try to change utp cable from miner to the router. Sometimes it helps.
Thank you! Today I'll try and report the result.
UPD. Unfortunately it did not work. He worked 9 hours and started blinking blue again.
If anyone has any other ideas, I'll try.