I am using an 1811 router to connect my network to the Internet. Outgoing mail from our server was getting delayed. I setup packet sniffers on the inside and outside of the router and found that not all the packets were getting through. The server sent 4 SMTP Data packets right after each other and only 2 were sent from the router to the remote host (see attached jpg).
I don't know a lot about routers. What could be blocking/discarding the packets?Is there a way on the router to monitor the packets comming in and going out?
Thanks in advance,