OpenVPN No Connect/Timeout

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http://serverfault.com – I have 2 OpenVZ Ubuntu servers hosted with a vps vendor, both with an OpenVPN link back to the office network, along with several transient laptops/android phones using the vpn with all working perfectly for months.. The server runs on standard udp port 1194, and uses a routed tun connection. Both of the vps are configured identically for OpenVPN, with only "server1" recently starting to constantly time out during handshake to the vpn server. "server2" has had no problems, and connects normally, plus no problems with the misc laptops and android devices. The server uses the "easy-rsa" PKI sche (HowTos)