RB1100 hotspot hangs every 3 days

arj1383 · Wed Jul 25, 2012 5:16 pm

Hello all,

I am running a hotspot in a hotel of 500+ rooms and 160 access points and I have a stupid problem.

My RB 1100 (4.16) every 3 days and some hours (I haven’t figured out how many yet) hangs and the users can login to the hotspot but after that they cannot browse to the internet.

If I disable the hotspot everything is OK, users can browse but for free…

The solution every time it happens is just to reboot the router.

For now I have configured a scheduler but this is not a serious solution of course.

In this point I am asking for your valuable help.

arj1383 · Fri Jul 27, 2012 5:50 pm

Anyone that could help me?

drzen · Mon Sep 02, 2013 10:19 am

I have the same problem.
Any news?

v.

Maggiore81 · Tue Sep 03, 2013 5:57 pm

Why dont you upgrade to 5.25 ?

drzen · Tue Sep 03, 2013 6:24 pm

Why dont you upgrade to 5.25 ?

Already done. Same problem.

V.

pcunite · Tue Sep 03, 2013 7:10 pm

If you're rebooting in the morning, reboot in the evening, manually of course, to see if it tracks a certain amount of time. Use another system to ping it constantly and let you know when it goes down. Have it send an email to you so you can know the exact time.

drzen · Tue Sep 03, 2013 7:22 pm

If you're rebooting in the morning, reboot in the evening, manually of course, to see if it tracks a certain amount of time. Use another system to ping it constantly and let you know when it goes down. Have it send an email to you so you can know the exact time.

Problem is random in time. Disabling and re-enabling hotspot all go right.
So, I think, problem is ARP poisoning.

v.

SurferTim · Wed Sep 04, 2013 12:52 am

So, I think, problem is ARP poisoning.

The hotspot uses ARP poisoning to perform the 1:1 nat for the hotspot. Try disabling the hotspot nat

/ip hotspot
set 0 address-pool=none

drzen · Wed Sep 04, 2013 8:16 am

Another puzzle piece:
- in mikrotik i have 3 hotspots interface
- two are wired and are ok, no problem
- the problematic interface is wired in a segment with only Ubiquiti Unifi APs
- the APs are configured as "plain-open" AP, no guest portal

I think some ARP poison interference between APs and mikrotik.

TheWiFiGuy · Wed Sep 04, 2013 8:48 am

Without more information , I cant really impart any help, however, I can say that we have many RB1100 units in such situations with uptime running into the hundreds of days, using significant AP and VLAN deployments.

Some off the cuff questions:

Are you running out of DHCP leases? IS the IP Pool big enough?
Are you running one big L2 network, or splitting it using VLANS and bridge horizons?
Any client isolation on the APS? Any Ruckus Zone Director?
Managed switches with port isolation?

drzen · Wed Sep 04, 2013 9:00 am

Without more information , I cant really impart any help, however, I can say that we have many RB1100 units in such situations with uptime running into the hundreds of days, using significant AP and VLAN deployments.

Some off the cuff questions:

Are you running out of DHCP leases? IS the IP Pool big enough?
Double yes.

Are you running one big L2 network, or splitting it using VLANS and bridge horizons?

No VLAN, APs are in a single network.
Rule used; one mikrotik port - one physical network segment
Wireless segment is one of these.

Any client isolation on the APS? Any Ruckus Zone Director?

No.

Managed switches with port isolation?

No.

salytwo · Sat Dec 28, 2013 8:31 am

Dears,

I have same problem occur everyday with MT 5.21 x86. when I disable and enable hotspot everything go right.

Can you help me write some script to enable and disable this hotspot everyday morning? so I can try resolve this error permanently later.

one hint:
when I keep my win xp with winbox running during night I come at the morning with hotspot is OK,
but when I switch off my pc the problem is occur and I find that MK hotspot is hanged and blocking the internet.

hope we help each other to solve this big problem

thanks

drzen · Sat Dec 28, 2013 9:05 am

Take a look at my post http://forum.mikrotik.com/viewtopic.php?f=2&t=79043

v.

salytwo · Sat Dec 28, 2013 9:22 am

I have all my pc is bypassed in IP bind. I do not use walled gardian ip.
just anyone not listed in IP bind will have loging page. also I did DHCL make static ip to them.

but the problem is still every morning I have to disable and enable the hotspot