I've got a strange problem. From one computer I can log on with no problem. With another computer I get:
could not get roteros.dll: no reply!
error on a new MT box. Both are computers are running the same version on WinBox. I can telnet to it just fine.
Any Ideas?

If you have symantec antivirus/firewall, you MUST put port 8291 in some list of allowed ports, somwhere, I don't remember exactly.
If not, chech your firewall or antivirus if it's blocking the connection.
MAC-winbox sees the router ?

Randy601,

You are going to want to delete the following folder: "%appdata%\mikrotik". Then re-run the executable and you should be fine.

Matt

I get error alot when doing winbox MAC level. Try with TCP connection.

Hi all, Thanks to you for discussing that type of probs. Ya me too facing a winbox probs. when i have open the WinBox then after few second it says " Could not get roteros.dll: no initial reply. the i close winbox and try to run it again but the error says " could not connect to "MAC ADDRESS" (port 20561) - timeout. Have there anything wrong. i could not change anything in my MTBox. and i had connected MTBox 2 or 3 hours ago. Can anyone suggest me. what wrong going on.

Riyad

Riyad,

Delete everything in the following folder. %userprofile%\Application Data\Mikrotik and also delete any winbox.exe you may have.

Then once you do that, download http://www.mikrotik.com/download/winbox.exe

Try that and see what happens.

Matt

FYI, ThreatFire is one such 'antivirus' that can cause this and missing menu items to occur.

I had/have the exact same thing. One tower I had to plug my laptop into the hub in which the tower was also in. I could then connect via MAC and get the necessary files. I then could copy %appdata%\mikrotik to my main PC and stop the error on it.

I believe this was caused by some sort of freak bug/hardware failure, though I honestly can't be certain.

Once you have the capability of connecting via IP rather then MAC, it is best to do so FYI.

Thanks a lot i have the same problem

all i can say - check your firewall, use latest version of routeros and use latest winbox downloaded from routeros box, that have latest version installed. Why? Because i do that and do not have any problems with winbox connecting to router. on top of that, i am using linux and wine to launch winbox, so that adds one more layer of "fail".