Obi202 Eating 40mbps of bandwidth?

[Slooop]

Hi all,

I have an Obi 202 connected behind my cable modem, with a PC connected by Cat5 behind my Obi202 using Obi as a router.

When the PC is directly connected to the cable modem I get 60 Mbps down.

When I put the Obi 202 in front of it, I get 20 Mbps down.

I've changed the 2 cat 5 cables in the line and the problem persists.

If I had to guess, this reminds me of those LAN port, full-half duplex setting issues. If so, where do I adjust those settings in the Obi interface? I only see physical port settings for the phone ports.

Firewall, QoS and DMZ are all disabled. LAN cables are all shorter than 3 feet. What am I missing?

Thanks for any and all help.

[Taoman]

In addition to being a NAT (Network Address Translation) router, the OBi202/OBi302 includes a DHCP server, a DNS forwarder and a basic firewall. It supports port forwarding, DMZ, QoS, and VLAN (802.1q). The maximum routing throughput between the WAN and the LAN side is approximately 30 Mbps.  This speed can be achieved when there are no active calls in the system. Otherwise the throughput will be limited to a slower speed to accommodate the load for voice processing. Note that if the WAN side is connected to an Internet access device directly, then the throughout could be further limited by the speed of the Internet uplink and downlink.

[OzarkEdge]

Hi all,

I have an Obi 202 connected behind my cable modem, with a PC connected by Cat5 behind my Obi202 using Obi as a router.

When the PC is directly connected to the cable modem I get 60 Mbps down.

When I put the Obi 202 in front of it, I get 20 Mbps down.

I've changed the 2 cat 5 cables in the line and the problem persists.

If I had to guess, this reminds me of those LAN port, full-half duplex setting issues. If so, where do I adjust those settings in the Obi interface? I only see physical port settings for the phone ports.

Firewall, QoS and DMZ are all disabled. LAN cables are all shorter than 3 feet. What am I missing?

Thanks for any and all help.

As mentioned above, the OBi throughput in router mode is 30Mbps max.  I would switch it to bridge mode... then it becomes a 3-port switch... and place it behind a good site router.  I would not disable your site router's default protection, but do disable any SIP ALG helper function.

And, change the OBi WAN/Internet port from default (2) 10Mbs half-duplex to (1) 100Mbs full-duplex:
Dial *** for Device Configuration Menu
Dial 0 for option
Dial 27# for current value
Dial 1 to set a new value
Dial 1# for new value 100Mbs full-duplex
Dial 1 to confirm/save
Hang up to reboot automatically

OE