Cant log into yahoo messenger but can log into mail help?

My internet works perfectly fine but i cant log in to yahoo messenger. Any help plss. thanks?

• i've uninstalled and reinstalled ym but to no avail. It says: we cant sign you in to Yahoo! messenger. there might be a problem with your Internet connection. make sure your computer is connected to the internet. it asks me to click "troubleshoot" and nothing happens. appreciate your help..

• Answer:

  Try each of these in turn, and try to sign in after each of them - if successful (or not) please feed back information to help others. 1) Since Internet Explorer is a vital tool in Yahoo (even if you use another browser as default I would recommend installing the latest version and update any support software for IE by using an update checker http://www.filehippo.com/updatechecker/ 2) Start with a clean browser Download 'ccleaner' and run it through a couple of times,using the factory settings and the 'Run Cleaner' control until 0 bytes are seen to be cleaned following a scan Run the 'Registry' from the left hand toolbar but 'Save' any changes after opting to 'repair' errors. http://www.filehippo.com/download_ccleaner/ 3) On the sign in page click 'Messenger' > Connection Preference Toggle between 'Connect direct to the internet' and 'Proxy setting' make sure the information is correct in the lower 2 boxes 4) Check these settings in IE (even if you have another browser set as default) a) Tools > Internet options > Connections > Lan settings > check 'Automatically detect settings - uncheck other options b) Tools > work offline - make sure this is NOT checked and has a red X through it 5) Disable your firewall and do a trial sign in 6) Control Panel > Internet Options > Connections > Lan Settings-uncheck Proxy server and check automatically detect setting 7) Control Panel > Internet Options > Connections > dial-up and virtual private Network setting > select your default connection > setting > check automatically detect setting