Losing audio on incoming calls
M105:
Quote from: RonR on May 03, 2011, 09:09:13 am
Haven't you simply bypassed the router/firewall on Ethernet port 4? Nothing in the Ethernet port has changed. You're simply feeding port 4 from the input to the router/firewall (the modem) rather than the output of the router/firewall. In my mind, this is a confirmation that the router/firewall is the culprit.
No, I have set up a VLAN. The firewall is still in place. This VLAN isolates port 4 from the rest of the network meaning it does not get broadcast packets from the other three ethernet ports or the wireless port. It is basically a firewall protected LAN with one NAT routed & firewalled port to the Internet. The Obi works perfectly with this configuration, the firewall is not and never was the problem. By putting it on its own virtual network, the link is quiet and not full of broadcast packets from other devices.
I suspect a lot of other "router" problems are really more related to the ethernet switch and are not NAT firewall or routing issues. I actually think the Obi may be firmware tweakable on the GV service so that it isn't as sensitive to packet timing. I hope the developers will take a look at this with a more technical perspective than a mere mortal like me can give it.
Also, there is a lot of information about VLANs on the web and many other routers support them. This may be an easy fix for others experiencing audio loss and dropped calls.
RonR:
Curiosity question:
Is your OBi using DHCP, and if so, what IP address is it getting after a reboot connected to your new isolated port 4?
M105:
No, I have it set for a static IP. The address map is still the same as the other VLAN 192.168.2.xxx but the Obi is not reachable from the other VLAN. I think there is a way to make routing across VLANS possible but this worked so smoothly I saw no need to change it.
M105:
Just an FYI to OBi support... I took my Obi off the VLAN and put it back on the main LAN after reading that the latest firmware update addressed some home router problems. It seems to be better but it is still not satisfactory. It will drop audio or completely drop the call at random times. I had to switch it back to the VLAN port which is isolated from the ethernet/wifi switching. It works fine that way.
There is still a problem there guys. Please keep working on it.
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