Messenger for Mac does not connect!

Well, I cannot find the file, I tried deleting the account history and nothing!!! I'm kind of desperate because I really need messenger for my work!!!

MS Messenger 8.0.1 running under Mac OS X Lion (10.7.2) cannot login - Login (0) failed with error: (7.0) using Proxy Server.

I'm running Squid proxy server under Ubuntu Linux, doing tail -f on Squid's access.log. When I click connect in Messenger, NOTHING appears in the proxy server log UNTIL AFTER Messenger gives up and pops up the dialog box that says "Sign in to Microsoft Messenger failed because the service is not available or you may not be connected to the Internet."

That most likely means that the socket is being flushed as Messenger shuts-it-down, which smells like Nagle Algorithm is not being disabled on the socket.

Now, there might be some kind of preference that I can set under Lion, (still learning my way around Mac OS unfortunately), but disabling the Nagle algorithm system-wide would not be a smart thing to do. (Lowering the threshold system-wide might work, but also probably not the smartest thing to do). I do get the impression that something changed in OS X Lion that caused this to break.

CONCLUSION: If you're trying to connect MSN Messenger via a Proxy server, (using HTTP), you are out-of-luck until Microsoft finds, fixes, and releases an update. :-(

Possible work-arounds:

a) I have had zero luck with version 8.0.1. I did get MSN Messenger 7.0.3 to connect while directly connected to the internet, but I had to delete the .plist file as in the above posts. (Or maybe it was the 'Clear Account History', I tried them all). Sadly, a direct connection is not an option for one of my clients.

b) Adium 1.4.3 works with HTTP, but it has a known bug that apparently causes the socket to close after a period of inactivity. Result: Lost inbound messages, which is worse than having nothing at all.

c) You can login to login.live.com with a WEB browser and use IM there. (But you have to keep your browser open).

Up next: How about a SOCKS proxy. Will Messenger work through a SOCKS proxy? (See Spot. See Spot run. Run Spot, run!)

Clearing the History worked for me! Thanks!

I had this issue recently as well. What I found was that Adium was working, but I was having issues with all contacts that were MSN. I couldn't log into Messenger, but other IM apps (Adium on my Mac and Beejive on my iPhone all worked, but had issues with msn contacts). The hint about socks and proxy got me to wondering. I went into my settings and under proxy the HTTP setting had been selected. De-selected and now all works again. Not sure how that got checked as I have not been in netwrok settings in ages.

Hope maybe this helps someone or leads them to a resolution for their system.

I need to add that none of the prior fixes about clearing history or deleting plists worked, as I did implement them all over the last few days with no resolution.

"When you open microsoft messenger, click sign in

Next, select 'clear account history'

Once cleared, quit the app and reopen it"

Thanks Kev-sex

"When you open microsoft messenger, click sign in

Next, select 'clear account history'

Once cleared, quit the app and reopen it"

Thanx Kev-Sex

Very good! It works!

Thank you Kev-Sex-!!!

Hi, I don't know if your problem solved or not but you can do as below.

The clear history is like this you can do. On the messenger sign in screen, on the bottom side, "sign in with different account or change your online status" please click this, you will see the "clear account history" I did it ans now works fine.

I have the same for with my messager internet connecting failure or internet is not connected but when i am using safari internet is connected and i am using mac 1.7.5.

I have done all the above activities but no use 😟

I have the same for with my messager internet connecting failure or internet is not connected but when i am using safari internet is connected and i am using mac 1.7.5.

I have done all the above