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Hi, I am using sangoma S5141 wan card. I have connected my modem to the card in linux machine. The linux distribution I am using is Redhat AS 4, I am trying to replace the cisco router in my office with the sangoma S5141 wan card. I have configured the card in CHDLC where I can able to ping the serial IP, but with 80% of packet loss. And If I browse any http or ftp or any sites I cant able to