Hi, we have been using squid_radius_auth for some time without any problems. Now we moved to a new platform (OpenSuSE 10.2) an experience a strange behaviour from squid / squid_radius_auth. Sometimes (random in time, about once per day) some users tell us that they cannot use the proxy any more. Squid writes into the logfile: 1183022732.285 30183 172.18.7.13 TCP_DENIED/407 1718 GET http://www.heise.de/ misch NONE/- text/html testing squid_radius_auth manually gives not problem, but when I do a tcpdump on port 1812 I see a lot of proxy -> radius Access-Request radius -> proxy Access-Accept packets on the wire. Since the RADIUS server answers with Access-Accept it cannot be a problem in authentication. These packets are send about every second(!), but it seems that squid somehow does not get the authentication correct. After a while squid writes the 407 to the logfile and the user get a new authentication window. Other users still can surf and sometimes squid accepts the authentication after several tries and the user can use the proxy. Any idea what might be wrong? Any hint welcome. Thanks. Config: squid.conf: auth_param basic \ program /usr/local/squid/libexec/squid_radius_auth -f /usr/local/squid/etc/squid_radius_auth.conf auth_param basic children 5 auth_param basic realm myCompany auth_param basic credentialsttl 20 minutes auth_param basic casesensitive off acl AuthorizedUsers proxy_auth REQUIRED squid_radius_auth.conf: server 172.19.1.3 secret testing123 RADIUS Server: M$ IAS -- Dr. Michael Schwartzkopff MultiNET Services GmbH Addresse: Bretonischer Ring 7; 85630 Grasbrunn; Germany Tel: +49 - 89 - 45 69 11 0 Fax: +49 - 89 - 45 69 11 21 mob: +49 - 174 - 343 28 75 mail: misch@xxxxxxxxxxx web: www.multinet.de Sitz der Gesellschaft: 85630 Grasbrunn Registergericht: Amtsgericht München HRB 114375 Geschäftsführer: Günter Jurgeneit, Hubert Martens --- PGP Fingerprint: F919 3919 FF12 ED5A 2801 DEA6 AA77 57A4 EDD8 979B Skype: misch42