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RV042 problem with VoIP after firmware upgrade

Hello, we have in our company Dual WAN router RV042 with NAT 1:N and on LAN we have VoIP PBX WELL mPBX-100. It was working for about 3 weeks, but yesterday I was upgrade firmware from 4.0.0.07 to 4.0.4.02 and after upgrade don't work VoIP PBX. SIP trunk on VoIP PBX go to status Failed after about 30 min and I must reboot router for re-registering SIP account. I think in the new firmware don't work port trigering or something similar. Old firmware 4.0.0.07 don't possible download from cisco web pages. Thank you for help.

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New Member

Re: RV042 problem with VoIP after firmware upgrade

I did try downgrade to version 4.0.0.07 by flash utility, but software write something like "TFTP server not running". Next I did try restore factory default settings and new device setup, but problem still exist. Now I was change Load balance mode from "Auto mode" to "Smart link backup" and now it works, but this is only temporarily solution. I want to servers and PBX will connect to internet via WAN1 and workstations and laptops will connect to internet via WAN2, only when one line is down connection will route via second line. In firmware 4.0.0.07 it was working well. Please help.

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