Everytime I open Mail recently it says "imap.aol.com" port 587 has timed out, or something similar to that... and I am forced to go to aol.com instead of simply opening Mail.. how do I fix this? Thanks. 
Maybe try using port 25 instead. You can change this setting in Mail's Preferences under Server Settings in Accounts.![]()
Okay, have you got a firewall active at either the OS level or the router level (or even the modem level)? You only need one firewall wherever that may be, so turn all but one firewall off and then ensure the port is open.
Okay, when you used the different wireless network, did you have to change the proxy settings, either manually or via installing a PAC file? If so, then create a new Location in the Network pane of System Preferences to get a default set of proxies.
Okay, try creating a new location in the Network pane of System Preferences and tell me if that works. If you don't recall installing a PAC file, then this probably won't help, but it's worth a try.
Alternatively, could someone have changed the firewall settings on your router while you were away? You might need to check the router's manual as to how you can check its settings.
Thirdly, it could be an ISP-side issue so depending on how user-friendly the ISP is, maybe contact them about the problem to see if they've heard anything similar.![]()
Alright well thank you so much for the help.. I'm sure it's not the most fun thing helping me... however I'm sorry but I'm not done questioning.
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I tried the new location thing and that didn't work.. so about the router.. would resetting it work? Like could I simply unplug it and plug it back in?
Finally about the ISP... I have the AOL email account but verizon DSL for the internet service... so which should I check?