Load Balancing with MBR1000, UM175, and Verizon

EdInKandQ

Anyone load balancing to a single carrier (preferably Verizon)? I don't *think* this is a Verizon issue as both cards work by themselves with no problems. BUT I really don't know what's going on. Any ideas would be great.

I've been running for almost a year with the MBR1000, UM175 and Verizon service (and been very happy), but lately I've been hitting my cap. As a result, I decided to get a 2nd aircard.

I wanted another carrier, but based on the coverage maps I've researched I determined that Verizon was the only carrier that could give me steady Rev-A.

The problem is that I can't seem to load-balance. One of my modems always goes "down" after a while.

They both start out green (browser admin interface) and I can watch both cards being used to send/receive data. After an unknown amount of time (not too long I'm thinking, but I haven't sat there watching either) - say on the order of an hour or two, one always goes into a bad state trying to reconnect (don't have the state in front of me, but it's something like "suspended for x minutes y seconds". I usually have to pull the modem out and plug it back in to get out of the reconnect cycle.

Here's a log extract below. My firmware is 1.6.0.

Any help would be greatly appreciated!
Thanks,
Ed

[INFO] Tue Sep 29 00:16:46 2009 WAN interface is up. Connection to Internet established with IP Address xx.xxx.xx.xxx and default gateway xx.xxx.xxx.xx
[INFO] Tue Sep 29 00:16:46 2009 WAN device (PPP) on port USB1 returned status_ok status
[INFO] Tue Sep 29 00:16:46 2009 WAN device (PPP) on port USB1 connected
[INFO] Tue Sep 29 00:16:46 2009 WAN device (PPP) on port USB1 attempting to connect
[INFO] Tue Sep 29 00:16:46 2009 PPP network up with IP Address xxx.xxx.xxx.xxx
[INFO] Tue Sep 29 00:16:46 2009 LCP sets local options: ACCM: 00000000, ACFC: 1, PFC: 1, MRU: 1500
[INFO] Tue Sep 29 00:16:46 2009 LCP sets remote auth: 00000000
[INFO] Tue Sep 29 00:16:46 2009 LCP sets remote options: ACCM: 00000000, ACFC: 1, PFC: 1, MRU: 1500
[INFO] Tue Sep 29 00:16:45 2009 WAN device (PPP) on port USB1 returned status_processing status
[INFO] Tue Sep 29 00:16:45 2009 WAN device (PPP) on port USB1 attempting to connect
[INFO] Tue Sep 29 00:16:44 2009 WAN device plugged
[INFO] Tue Sep 29 00:16:44 2009 WAN device (PPP) unplugged port USB1
[INFO] Tue Sep 29 00:16:44 2009 WAN interface is down
[INFO] Tue Sep 29 00:16:44 2009 Stopping WAN Services
[INFO] Tue Sep 29 00:16:44 2009 WAN interface is down
[INFO] Tue Sep 29 00:16:44 2009 Stopping WAN Services
[INFO] Tue Sep 29 00:16:44 2009 PPP network down
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Ed

EdInKandQ

The log extract I posted showed it successfully reconnecting (status_ok).

Sometimes it does that and stays connected for a bit (the more common behavior) and sometimes it stays in an endless loop returning a "status_no_response" status.

Thanks again.
Ed
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Ed