Thanks for help- suggestion fixed the issue John
On 21 November 2011 11:25, John Taylor <j...@vetsurgeon.org.uk> wrote: > Thanks AJ- have set it to 5 mins via telnet: srv dhcp leasetime 600. Will > get permission to try new firmware later! > > JT > > > > > On 21 November 2011 10:45, Arthur Stanfield <a...@dmcip.com> wrote: > >> Hi John, >> >> We've had similiar issues with customers behind the 2920 connecting to a >> hosted asterisk system. If you rebooted a phone it often didn't >> re-register, Checking the NAT sessions table on the router revealed stale >> nat sessions open for the phone. >> >> On the advice of Dreytek we found a fix by lowering the NAT session >> timeout from the default of 24hrs down to 5 minutes and installing the >> latest release of the firmware (3.3.7) it may not be available on the UK >> Site at the moment (It wasn't when we did the upgrade!) but it can be got >> from ftp://ftp.draytek.com/Vigor2920/Firmware/v3.3.7/ >> >> It may help, It may not - But its quick easy fix if it does. >> >> Regards, >> AJ. >> >> >> ----- Original Message ----- >> From: "John Taylor" <j...@vetsurgeon.org.uk> >> To: "Asterisk Users Mailing List - Non-Commercial Discussion" < >> asterisk-users@lists.digium.com> >> Sent: Monday, 21 November, 2011 10:20:14 AM >> Subject: [asterisk-users] vigor 2920 problems >> >> One of our clients has a Draytek Vigor 2920- their natted Snom phones >> behind it are registered to an Asterisk 1.4 server on an external public >> IP. >> >> I've set QOS, bandwidth management and turned off the SIP ALG via telnet >> but I'm still having some problems with some of the phones losing >> registration if Asterisk is restarted. >> >> I can see the phones sending SIP REGISTER messages, but they never >> arrive at the server; this happens in about half of the phones- with no >> consistency as to which lose registration. >> >> It looks like the router is swallowing the messages, or there's some >> kind of NAT problem. Other clients at other sites are fine. >> >> The problem clears if the phone is rebooted (renegotiates a new nat >> path?) >> >> Any help warmly appreciated. >> >> John >> >> -- >> _____________________________________________________________________ >> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> New to Asterisk? Join us for a live introductory webinar every Thurs: >> http://www.asterisk.org/hello >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users >> > >
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