I've got Y!TunnelPro (it won't connect), nor can I use it & Y!Messenger at the same time, did the FW thing,...
544641
you just upgraded to yahoo messenger 7.5 with voice.\nSwitch back to 7.0 the hook up is on the 7.5 download page off to the right in size 10 print.
349914
Check Yahoo Messenger 'Connection Preferences' . POroxy setting if you using proxy
974550
Only possible with 3rd party softwares work like add-on. 2 different version of msn later may couse problems; do not try.
881793
1. Check the ID and password and if not...\n2. check the server on the  connection and if not...\n3. re-start your computer and if not...\n4. re-install the AIM messenger. \n\nHope it helps. ;)
335992
The two messenger accounts should not conflict, HOWEVER, it depends on how it was installed/configured. What operating system are you using?  Are you using quick/switching mode on XP?\n\nMake sure that she does NOT save her Username and password when logging into her account.\n\nAfter she uses it, log her out completely and relog back on using your account.  If it does not work, reboot the machine after she uses it.\n\nThe quick solution to MANY Microsoft products is to REBOOT.\n\nGood luck!
1132191
I cannot log into my messenger, i've restarted, and i've changed usernames and retyped passwords, but nothing has seemed to help. I believe it's yahoo's problem... but you can sign on using the "firewall with no proxies" i just did.... what some one told me to do.... cant believe it worked....
582577
go to yahoo help, it happends in the new 7.5, you have to set your firewall up, it gives you the settings to do it, then it will work, I got aggravated and went back to 7.0 and it works fine now
475803
It would be unwise for you to remove the firewall.  All firewall programs allow you to give "exceptions" to sites that you want to have a two way interaction through the firewall.  The link below covers this issue; go to "step 5: known issues" to see how to allow MSN Messenger to opperate with your firewall.  Your firewall is your friend; it is trying to protect you.  Let it protect you and allow MSN Messenger at the same time!
850142
I can't get into mine either. Messenger seems to be having a few problems of late but apparently they're fixing it. Must be gremlins in the system again.
659366
Try reinstalling Yahoo Messenger.  Always keep the Offline Yahoo setup with you to avoid multiple download.\n\nIf you have good internet connection, then you can download the latest version any time.
454541
might the other one blocked u..for an reason which i dont wanna stress upon ;)\n\nmight be a bloddy firewall medocered  the msg !
285804
Check your Firewall, make sure that program is allowed to connect, if you have one.\n\nAlso check settings, tell it your behind a firewall, if it has that option and that is if you do have one..
1095063
there are two possibilities \neither u r behind a firewall that dose not allow u  to connect to messenger if yes u cannot be connected to yahoo messenger\nor \nthere is problem with the cookies,check and enable the cookies in internet explorer
269795
check ur firewall settings and allow aim and yim to access in and out if that doesnt work try uninstalling and shutting down and reinstalling if that doesnt work get a new sn that ull use as a tester. get on for both services and then try signing in with the new sn if that still doesnt work i dont know wut to tell u besides u trillian which i do http://www.ceruleanstudios.com/
22554
Hi.  I'de like to run through a few possibilities.\n\n1.) Check to see if your actually online\n2.) Check to see if your Windows Firewall or Third-Party Firewall software is blocking Yahoo Web Messenger\n3.) Re-install Yahoo Messenger, Restart Computer
277218
Start messenger. \nclick on "Connection preferences"\nclick on option that says "Firewall with no proxies"\nclick ok \nand try again\nhope that helps.
113275
try re install yahooo messenger\ngood luck