Community discussions

 
3liswaid
newbie
Topic Author
Posts: 44
Joined: Thu Feb 14, 2019 5:12 pm
Location: Syria
Contact:

Wireless keep disconnecting

Thu May 16, 2019 9:08 pm

Hi,
i'm having an issue
my laptop keeps disconnecting from MikroTik as below
21:04:35 wireless,debug MikroTik: F8:59:71:43:2C:18 attempts to associate 
21:04:35 wireless,info F8:59:71:43:2C:18@MikroTik: reassociating 
21:04:35 wireless,info F8:59:71:43:2C:18@MikroTik: disconnected, ok 
21:04:35 wireless,debug MikroTik: F8:59:71:43:2C:18 in local ACL, accept 
21:04:35 wireless,info F8:59:71:43:2C:18@MikroTik: connected, signal strength -52 
21:04:40 wireless,debug MikroTik: F8:59:71:43:2C:18 attempts to associate 
21:04:40 wireless,info F8:59:71:43:2C:18@MikroTik: reassociating 
21:04:40 wireless,info F8:59:71:43:2C:18@MikroTik: disconnected, ok 
21:04:40 wireless,debug MikroTik: F8:59:71:43:2C:18 in local ACL, accept 
21:04:40 wireless,info F8:59:71:43:2C:18@MikroTik: connected, signal strength -47 
21:05:04 wireless,debug MikroTik: F8:59:71:43:2C:18 attempts to associate 
21:05:04 wireless,info F8:59:71:43:2C:18@MikroTik: reassociating 
21:05:04 wireless,info F8:59:71:43:2C:18@MikroTik: disconnected, ok 
21:05:04 wireless,debug MikroTik: F8:59:71:43:2C:18 in local ACL, accept 
21:05:04 wireless,info F8:59:71:43:2C:18@MikroTik: connected, signal strength -54 
21:05:05 wireless,debug MikroTik: F8:59:71:43:2C:18 attempts to associate 
21:05:05 wireless,info F8:59:71:43:2C:18@MikroTik: reassociating 
21:05:05 wireless,info F8:59:71:43:2C:18@MikroTik: disconnected, ok 
21:05:05 wireless,debug MikroTik: F8:59:71:43:2C:18 in local ACL, accept 
21:05:05 wireless,info F8:59:71:43:2C:18@MikroTik: connected, signal strength -48 
21:05:18 system,info,account user Ali logged in from 10.0.0.249 via winbox 
21:05:53 wireless,info F8:59:71:43:2C:18@MikroTik: disconnected, extensive data loss 
21:06:02 wireless,debug MikroTik: F8:59:71:43:2C:18 attempts to associate 
21:06:02 wireless,debug MikroTik: F8:59:71:43:2C:18 in local ACL, accept 
any idea how to resolve this problem?
it happens from time to time
 
sindy
Forum Guru
Forum Guru
Posts: 3942
Joined: Mon Dec 04, 2017 9:19 pm

Re: Wireless keep disconnecting  [SOLVED]

Fri May 17, 2019 7:40 am

At first glance it looks like radio interference - connect using an Ethernet cable and use /interface wireless scan to see what other wireless networks at what frequencies (channels) exist around you. Google something about how WiFi actually works - in the 2.4 GHz band, only few channels (1,6,11 or, with newer specifications, 1,5,9) actually don't overlap, so even a nominally different channel may interfere with the one you've chosen for your AP. If channel aggregation is used, the same can happen also in 5 GHz band. Some mobile applications for wireless scan show this graphically.

In crowded environments, it is actually better to use the same channel as another AP than a partially overlapping one, because in that case the two APs can accommodate to each other to some extent so they end up sharing the channel. On partially overlapping channel the devices just malform each other's transmission.
Instead of writing novels, post /export hide-sensitive. Use find&replace in your favourite text editor to systematically replace all occurrences of each public IP address potentially identifying you by a distinctive pattern such as my.public.ip.1.
 
3liswaid
newbie
Topic Author
Posts: 44
Joined: Thu Feb 14, 2019 5:12 pm
Location: Syria
Contact:

Re: Wireless keep disconnecting

Fri May 17, 2019 12:38 pm

At first glance it looks like radio interference - connect using an Ethernet cable and use /interface wireless scan to see what other wireless networks at what frequencies (channels) exist around you. Google something about how WiFi actually works - in the 2.4 GHz band, only few channels (1,6,11 or, with newer specifications, 1,5,9) actually don't overlap, so even a nominally different channel may interfere with the one you've chosen for your AP. If channel aggregation is used, the same can happen also in 5 GHz band. Some mobile applications for wireless scan show this graphically.

In crowded environments, it is actually better to use the same channel as another AP than a partially overlapping one, because in that case the two APs can accommodate to each other to some extent so they end up sharing the channel. On partially overlapping channel the devices just malform each other's transmission.
thank you for your help
i have used Freq usage and then i chose the least used frequency and i will observe again
 
3liswaid
newbie
Topic Author
Posts: 44
Joined: Thu Feb 14, 2019 5:12 pm
Location: Syria
Contact:

Re: Wireless keep disconnecting

Fri May 17, 2019 5:48 pm

thank you for your instruction. it was helpful

Who is online

Users browsing this forum: No registered users and 105 guests