remote access wizard

I hope someone can help. BI has been working fine until the last month or so. My remote access to the BI system is not working. Specs are: ATT Uverse with NVG589 modem/router BI server is set up with static 192.168.1.86 and port 88 Firewall is set with TCP and forward port 88 to 192.168.1.86...