Amos, Thanks for the quick response! The error happened on all streams (or at least, on all refresh tries). I too didn't see any error in the captures so I can't say what's the issue. I doubt there's a server certificate problem - it worked before and it worked after... What other reasons could lead to that? Attaching all the other captures. This time the upstream one (the last one was the downstream). sniff0.cap <http://squid-web-proxy-cache.1019090.n4.nabble.com/file/t377689/sniff0.cap> sniff1.cap <http://squid-web-proxy-cache.1019090.n4.nabble.com/file/t377689/sniff1.cap> sniff3.cap <http://squid-web-proxy-cache.1019090.n4.nabble.com/file/t377689/sniff3.cap> I don't see anything special here (maybe you'll see), but evidently, there's a problem. What can I do more to better understand the problem? -- Sent from: http://squid-web-proxy-cache.1019090.n4.nabble.com/Squid-Users-f1019091.html _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users