Hi, We've come across an issue where SPA502/504 phones reboot randomly due to the DHCP lease/renewal that are connected to an SRP521W router with the latest firmware. The phone has Software Version: 7.4.7 Hardware Version: 1.0.2(0001) Here are syslogs taken from the phone and router: 2011.05.04-09:56:42 <10.0.16.1>: <13> udhcpd: DHCP Wed, 04 May 2011 09:57:07 received DISCOVER from E0:5F:B9:81:9D:E9 2011.05.04-09:56:43 <10.0.16.1>: <13> udhcpd: DHCP Wed, 04 May 2011 09:57:08 sending OFFER to 255.255.255.255 with 10.0.17.23 2011.05.04-09:56:44 <10.0.16.1>: <13> udhcpd: DHCP Wed, 04 May 2011 09:57:09 received REQUEST from E0:5F:B9:81:9D:E9 2011.05.04-09:56:44 <10.0.16.1>: <13> udhcpd: DHCP Wed, 04 May 2011 09:57:09 sending ACK to 10.0.17.23 2011.05.04-09:56:44 <10.0.17.23>: <134>System started: ip@10.0.17.23 , reboot reason:W4 I've set the DHCP lease to be 8640 mins for both VLAN1 and VLAN100. Would anyone have experienced somethings similar and know how to avoid these reboots?  Maybe I've overlooked a setting on the SRP521W router? Thanks in advance! Marvin ... View more

Hi All, We've come across an issue whereby the WAN port fails to light up with an Adtran Total Access 832 (via bonded SHDSL) unit. Eventually the WAN port does light up after connecting and disconnecting it several times with the ethernet cable. However as a test I power cycled the router with the WAN cable disconnected and had a strange issue where the WAN light would constantly flash and show up in the web gui as being connected when in fact the Adtran Unit showed the device was not connected at all. This is the second Cisco SRP521W router in place as the original one disconnects overnight without any load and a power cycle would fix the issue, but this replacement router disconnects during business hours (even worse for the customer) and power cycling does not bring it back online. We've adjusted the WAN port to 10MB Full on both devices and hope that it stays up. I am wondering if anyone has had a similar experience?  Would this be a behaviour of a faulty unit or may it not be compatible with the Adtran Total Access 832 (via bonded SHDSL) unit perhaps? I've enabled syslog on the router but I suspect that this is for the voice functionality only?  Is there a feature to syslog the WAN ports as well or something that can be implemented perhaps? Thanks in advance, Marvin ... View more

Hi all, I think I've found the answer in the SRP500 series whitepaper but just to confirm, as I find that the SRP520 models can only handle class C subnet masks, I could not see any class B subnets in the pull down menu even though I entered a class A address as a LAN IP, must I use a class B LAN IP to see the class B subnet masks in the pull down menu of an SRP521w or SRP527w? I haven't tried any 540 models yet, can anyone confirm that you can use all class subnets on these units before purchasing? Below is what I found on the link here: http://www.cisco.com/en/US/prod/collateral/voicesw/ps6790/gatecont/ps10500/data_sheet_c78-550705.html Approvals and compliance Class B on 520 models; Class A on 540 models Thanks in advance. Marvin ... View more