ERROR: wrong username or password

RouterOS Beginner Basics
1

Router RB2011UiAS-2HnD after FULL reset in winbox when i try to connect via MAC address show wrong username or password??
as always default password is:
admin and “blank” as password

i cant understand what is wrong with router?
Anyone can help? please

for full reset i use router touch screen monitor Reset Configuration function with default password “1234”
IMG_0250.jpg
Capture.JPG

2

Try to Netinstall.

3

The screenshot shows that you are trying to connect by MAC.
Try connecting by ip.

4

We have gotten this on a few RB3011s.

This has been after they were ‘comprimised’, and then netinstalled. Still unable to access them. We have not yet found a solution.

5

On my hap ac2 after netinstall and normal reboot (with power off-on as often as you want) nothing goes.
Need to do another reset to default settings (press button >5 seconds) only then finally device reboots properly and Wifi etc. coming up.
My ones were not infected (as far as I could see).

6

Update your Winbox to 3.18

7

I need o followup the issue with “ERROR: wrong username or password” via Winbox

I have same issue with symptoms below, I am sure that this is a bug with winbox (!!!)

Winbox version 3.23 or 3.27 both 32 and 64 bit and mikrotik version is 6.45.9 (HEX)

The router have multiple interfaces with internal and public ips, the issue is happen when I connect to internal IP

This is not forgotten password issue for sure:

  1. same pass working with winbox via public IP, and ssh via any IPs
  2. The issue appear when the network topology was changed to use MPLS network
  3. the password was retyped into the device

Any ideas?

8

“wrong password” may appear if the user is not allowed to log in from used IP.
check your users, whether they have limited addresses. e.g:

[vecernik@mikrotik] > /user export
/user
add group=full name=vecernik
add address=10.11.12.0/24 group=read name=test

As you can see, user “vecernik” can log in from any IP, but user “test” is limited to only 10.11.12.0/24 range. If he tries to log in from any other IP (e.g. 192.168.0.2) he will see “incorrect password” because for his IP, there is no matching user entry

9

Thanks for the idea, I checked: no IP limitations.

Actually I have more details about the issue: Looks like the error is appear because wrong “next-hop” settings on neighbor router:

The “next-hop” is pointed to the other mikrotik with old version and traffic is “in and out” back to the same interface when go to the affected router.
I changed “next-hop” to new mikrotik with modern version and issue “wrong password” is gone.

I think the problem is some how related to the modification of the winbox packets going via interim router

10

Interesting finding! thanks for feedback.
If the data are just forwarded (i.e. not ROMON etc), I find it unexpected for any router to modify/corrupt packets. Rather, I would guess that the interim router was accepting the packets and replying on its own possibly?