I'm going through a weird problem. I'm using RB1100AHx2 with hotspot setup. And using external radius server for AAA. Everything works fine with 2-3 users authenticated. But, as more users login. The latency goes very high. for example, 220.127.116.11 goes to 600-700ms, while in general it goes till ~40ms and also from within the router latency is normal. And this issue is not just with hotspot interface, but all of the 13 interfaces available on router. When I tried testing speed from some other non-hotspot interface, I get only 2~3Mbps while total available bw on wan is 40Mbps.
What I've tried so far is, created manual queues for bandwidth shaping & everything works fine.
And another issue is with mail.yahoo.com. That won't resolve if hotspot is enabled. While no issue with hotspot disabled. I've tried enable/disable remote dns requests.
I'm using ROS version 5.20.