I have an account with a Spectrum tx.rr.com address. I use Thunderbird to view and send. The email account is set up as POP3 in Thunderbird. It has worked well until the last couple weeks when I started getting sporadic errors from Thunderbird saying "could not connect to server mail.twc.com; the connection was refused." then a few minutes later it works. Sometimes this happens on the Send and sometimes on the Receive.. I believe the account is set up correctly and I never have an issue through webmail. This can happen 5-10 times/day. It is annoying. Any suggestions on how to fix?