Hey, Is this a tproxy or intercept setup? Eliezer -----Original Message----- From: squid-users <squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of marcelorodrigo@xxxxxxxxxxxxxxxx Sent: Saturday, October 30, 2021 09:10 To: squid-users@xxxxxxxxxxxxxxxxxxxxx Subject: Error 503 accessing Instagram/facebook via IPv6 Hi, I have been using squid for several years and am very grateful for the solution. Since last 3-4 days my customers haven't been able to access www.instagram.com and Facebook throug IPv6s that were already working as proxies for years. I only get 503 error after a time out. The strangest thing is that I can connect 20-30% of the attempts. I didn't make any changes to the VPSs. I switched IPv6s provider to a totally different subnet, changed several equipments, but it didn't work at all. If I access through the same VPS using the same IPs as squid is running using curl command but not going through the proxy It works. But through Squid it no longer accesses as before. This only happens with v6 IPs. On V4 Squid runs normally. I upgraded to Ubuntu 20.04 and Squid 5.2-10 but everything remains the same. My agency depends on it and I've already lost half of my clients. Could you please help me, even if I have to pay for support? _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users