Hi, it looks like your router is not suitable for such things, I had a similar situation, and for a very long time I tried to connect such a router in the same conditions, but all attempts were useless, and I decided to buy a completely new router, with all the settings already in This store https://qvsupplies.com/, it was configured completely automatically, which made me very happy, and the signal itself has a very high quality and speed of information transfer on the network.