This is a static archive of our old Q&A Site. Please post any new questions and answers at

TCP exchange works but no web page


I am working on a small embedded web server for a "friendlyarm" with no OS.

As shown in this picture it appears to go thru the connection negotiation just fine but IE still says it can't show the webpage. Any ideas ?

asked 06 Apr '13, 16:12

Vernon%20Lermond's gravatar image

Vernon Lermond
accept rate: 0%

that Screenshot doesn't help much because it doesn't show decoded HTTP, probably because you didn't use port 80 or any other well known HTTP port on your server.

Can you force HTTP decoding by right clicking on a packet of the conversation and selecting "decode as" -> HTTP? Or better yet, if this is just a test trace: put it on and post the URL.

(06 Apr '13, 16:19) Jasper ♦♦

One Answer:


While I totally agree with @Jasper that an image is not really handy to analyze packets (that's why we have Wireshark, to look at packets in detail), it does show what is wrong.

After accepting the connection, the server does receive the request from the client (frame 26) and acknowledges it's reception (frame 27). However, the server does not send back any data to the client (based on the TCP sequence numbers) and closes the connection (frame 28).

So it looks like your webserver does not properly send a response...

answered 07 Apr '13, 00:52

SYN-bit's gravatar image

SYN-bit ♦♦
accept rate: 20%