I’m running a hot spot that gives internet access to ±10 users. Each user is authenticated by MAC against the radius server (User Manager). Each user has upload/download limits. Me, as the administrator, is also a hot spot user having 100k up and 1200k down. This morning, the internet was extremely slow. I logged into my local router (the one that connects to the hot spot) and pinged the hot spot router. The pings were very slow - 1000+ms. The CPU usage was not very high, between 0-10%. I then saw that when I disconnected one of the local users on my lan, the problem went away and the pings stabilized on ±4ms. I contacted the user and asked what he’s busy doing. Said he’s sending out a large email. I then confirmed this by checking our hot spot queue. The queue showed in red and was maxed out on the outgoing traffic - 100k.
I then decided to do a test and removed our queue. As soon as the queue was removed, the local lan user gained full upload bandwidth and the problem immediately went away? While still busy sending out the large email, I reinstated the queue again and the same problem occurred, the network slowed down…
Why, when a queue reaches its limit, does it cause this extreme slow down on the relevant connected router?
I have seen exactly this behaviour on a RB450 with ROS 3.20. The hotspot adds a simple queue for each user when they log in and if any one user reaches their outbound limit (e.g. sends a large e-mail), the whole router grinds to a halt (but without increasing the CPU/RAM utilisation).
This also happens with incoming traffic, thus with downloading. If the queue limit is reached, the pings are dead slow. Remove the queue for the specific user on the hot spot router, no more slow pings…
Hey people please please help me… i have a mikrotik 2.9.27 router in my internet cafe and when i try to ping local ethernet 192.168.1.1 ping goes up to +2000.
i think this is usually when the traffic of local ethernet is to heavy or someone is attacking my router… can anybody help me to find out what to do?
It was working good for many months
i would like to know how to be protected from DDOS attack.
please help me people please
I’m running a HotSpot with 10 active users sharing a 4mbit ADSL connection. I’m one of the 10 users and the admin. I’m limited on speed, upload 150k, download 1500k.
Here is the test:
I’m constantly pinging the hotspot router. The pings are 3-4ms. Then I start to upload/download until my speed limit is reached in the queue. The pings go up to 400-500ms!! Then, I delete my queue on the HotSpot router. Suddenly I get the full available bandwidth (4mbit ADSL line) and the pings drop to 3-4ms again?!
Thats a speed penalty of almost 125 times!!
Whats going on here?
Mikrotik developers, please give me some insight on this issue.
hi nick i confirm this and its true i experience this issue on my other rb450 if the queue reach the limit both download and upload the router suddenly high ping and the hotspot user doesnt show the login screen it only shows white page mikrotik http proxy.
I have this same issue here http://forum.mikrotik.com/t/huge-ping-times-and-packet-losts-pppoe/50608/1 for 7 days no one even tried to reply.I bought 5 of mikrotik routers (2 RB1100 and 3 RB750) and I have that problem on all.I tried all possible things but nothing still high ping when reaching down or up limit set by queue.
This is clearly issue here but no one seems to care.I did not expect this from Mikrotik.
