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#91786 by murphy
Sun Jan 15, 2012 7:13 am
gregchak wrote:For the longest time I have had my Ooma Telco behind my router because the port forwarding never worked correctly. Over the past year, with all of the firmware updates I decided to to try it again. To my delight, the port forwarding worked great! Unfortunately, I have the same problem as the OP. To make it more interesting, I am subnetting at 255.255.255.128 for other reasons. I can go in and update my home network settings to the 192.168.100.x settings and setup port forwarding. The problem is whenever my Telco is power cycled it loses all of its settings and reverts everything back to 172.x.x.x and clears out all of my port forwarding settings.

I am running, from what I can tell, the most current firmware at 50832. Is this a known issue? Are there any work arounds?

Thanks for the help!

The subnet 192.168.100.x is used by most cable modems.
192.168.100.1 will access the cable modems status pages.
Perhaps the Telo is detecting the conflict and rejecting your request.
Change the 100 to something other than 100 and see if that works.
#91788 by gregchak
Sun Jan 15, 2012 7:19 am
I've tried 100, 1, 25, 37 thinking there might be an issue there too. No luck. Has anyone else changed their home network IP and subnet and not had problems? I wonder if I have a defective Telco.
#91789 by murphy
Sun Jan 15, 2012 7:37 am
gregchak wrote:I've tried 100, 1, 25, 37 thinking there might be an issue there too. No luck. Has anyone else changed their home network IP and subnet and not had problems? I wonder if I have a defective Telco.

I just changed my Telo (not Telco) to 192.168.1.1 with subnet 255.255.255.128 and it works fine.
What browser are you using. I use Firefox. There have been problems with Chrome in the past.
When you changed the Home port's IP address did you also change the start and end lease values to match.
#91809 by gregchak
Sun Jan 15, 2012 4:07 pm
murphy wrote:I just changed my Telo (not Telco) to 192.168.1.1 with subnet 255.255.255.128 and it works fine.
What browser are you using. I use Firefox. There have been problems with Chrome in the past.
When you changed the Home port's IP address did you also change the start and end lease values to match.

I changed my home IP to 192.168.x.1 and changed my DHCP information too. I then go into advanced and setup port mapping. All of this works quite well, but as soon as a power cycle happens it reverts back to 172.27.35.1.
#91810 by thunderbird
Sun Jan 15, 2012 5:09 pm
gregchak wrote:
murphy wrote:I just changed my Telo (not Telco) to 192.168.1.1 with subnet 255.255.255.128 and it works fine.
What browser are you using. I use Firefox. There have been problems with Chrome in the past.
When you changed the Home port's IP address did you also change the start and end lease values to match.

I changed my home IP to 192.168.x.1 and changed my DHCP information too. I then go into advanced and setup port mapping. All of this works quite well, but as soon as a power cycle happens it reverts back to 172.27.35.1.

I've never tried this, and I know it would be a pain, but:
I wonder if, instead of changing the numbers in the Ooma Telo>Ooma Setup>Home Network page, try changing the numbers in the router's internal network settings page to 172.27.35.x etc? You shouldn't have to worry about the Ooma Telo defaulting back?
#91815 by gregchak
Sun Jan 15, 2012 7:02 pm
thunderbird wrote:I've never tried this, and I know it would be a pain, but:
I wonder if, instead of changing the numbers in the Ooma Telo>Ooma Setup>Home Network page, try changing the numbers in the router's internal network settings page to 172.27.35.x etc? You shouldn't have to worry about the Ooma Telo defaulting back?

Maybe I failed to mention this so I'll explain. I have internet via my cable company. They provide a cable modem which will give out 1 external IP. I have my Ooma Telo connected directly from my cable modem to its internet port. My Telo gets an external IP. I then have the home port on my Telo plugged into a switch. It sounds like you think I have a router in between my cable modem and my Telo which is not the case.

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