Messenger for Mac sign-in problems

I'm facing the same problem every time I sign-in i get this msg "Sign in to Microsoft Messenger faild because the servise is not available or you may not be connected to the internet"!!!!! I'm connected!!! it's been driving me crazy I don't know what to do please help me

- I am having probs with messenger 6.1. Using G5 OS 10.4.8. Was forced to upgrade and its never worked. It goes to sign in but comes up with the message:
"failure because service not available". I use a combination of ichat and skype to talk to collegues and for business reasons, the fat comb over bosses of the world that are on PC's, I communicate through Messenger. I have tried everything from the suggested deleting of the various prefs and strengthening my password and all the other stuff, but nothing so far works. I can log in to the msn web page but not messenger. Any other suggestions?
Steve.

since i intalled the new version i'm not able to log in.. any account.. with the 5.1 version it was ok!
i changed the password.. i didnt work either.. the weird thing is that in a pc.. i can log in without any problem.. if someone knows a solution.."PLSSSSSSSSS

Hi, erm ive never used this before but ive been trying to find some help since i downloaded the new mac messenger.
when i went to log in to my messenger 5.1.1 i was told that i needed to upgrade to 6.0.1 before i could continue using the service, a message asked me if i wanted to do this so i agreed and after downloading i followed the instructions and saved it to my applications. when i clicked on it to sign in, the setup menu did not appear as said in the instructions, only the sign in screen. therefore, i went to sign in with my hotmail address that worked fine on the 5.1.1 version and it continues to not allow me. my address and password is not incorrect.
i would really appreciate if somebody could help me because its becoming really frustrating as i need to keep in touch with friends and family.
version 5.1.1 was fine and i didn't want to upgrade but it stated that otherwise i could not continue use?!
does anyone know what could be the problem?? i would be really grateful if someone could help??

I have the same problem; when trying to sign in, the following message comes up:

"Sign in to Microsoft Messenger failed because the service is not responding. The service is not available or you may not be connected to the Internet."

Now, I am connected to the internet through a Belkin wireless router which is connected to my PC. I am currently using a Macbook and Microsoft Messenger is really annoying!

I tried changing to previous versions, versions which simply say "you will not be able to log-in unless you download the latest version". I also read that the 6.0.0 version had sign-in problems, and the 6.0.1 version was supposed to solve that. Well Microsoft, you didn't!

I also tried to change my password so its status is "very strong" (according to the Windows Live password scale") but still I can't sign on.

Please help me out if you can. Thank you!

I emailed microsoft for a login solution with messenger 6. They sent the following directions which worked for me.

1. Open the following folder:

libraryPreferencesMicrosoft

2. Delete the following files:

- Com.microsoft.Messenger.plist
- Com.microsoft.MessengerDaemon.plist
- MSN Messenger User Cache

Messenger for mac seems to be having a wierd effect on my internet connection... it crashes my network on sign in... I have to 'unplug' the router and then I am back... very wierd. I am using a mac mini duo 2gb ram and the latest version of messenger.

Resetting the password worked for me! Make sure that you go thru all the steps, including choosing a new question/answer for next time otherwise it will tell you that the password you just created is wrong in MSN messenger.

I upgraded today because v5.1.1 wouldn't sign in for the last couple of days (since the release of v6.0.1 I suppose). It signs in but automatically signs out after a few seconds telling me that the service is unavailable. Changed the password to a "strong" length but it didn't work, same problem happening. I don't understand why v5.1.1 would stop signing in due to the release of v6.

Er. Correction to the above comment: the contact on the block list that's causing trouble is messenger@microsoft.com, not messenger@msn.com.