Hi all, complete newbie here. I bought the AX6600 (XT8) mesh (router and node) because my exterior security cameras were not picking up my router well enough. My front camera has lost signal a couple of times recently so I went to check the mesh to see if all was well. First probelm is that I cant access the app to manage my existing router because it will not accept the username and password (I recorded these during initial setup), so some advice on how to recover those would be appreciated. The mesh appears to be working but I get 350 Mbps at the router and 75Mbps at the node, is this normal as there seems to be a big difference? Thanks in advance for any advice provided.