After a long time having this problem I believe this is my issue with my second channel, sometimes it can work a day or two, but then it messes up and won't work until I do a power cycle.
I read that if my second B channel tries to connect to a modem on a different terminal servers that my 1st B channel that it sends a magic number along with instructions that its part of a MPPP bundle, which it ignores and tries to give my cisco a IP number out of the pool and then my cisco drops the channel. It will continue to try to connect and drop continously.
Anyone know a ISDN ISP that supports multichassis multilink PPP?
Well i can't think of what else would cause this, maybe the configs on the ISP servers are messed up, looking at the debugs it sets there and tries to setup the bundle and the bundle doesn't get set up. In the negotiation it continues to send the magic number 5 times, it doesn't happen very often, maybe once every other day and it requires me to power cycle the router.
When i first went with them never an issue, its ISDN ISP btw.