Getting a Interface up, line protocol down. Link used to work fine. Line has been tested by ISP. Appears PPP negotiation is failing:
Router 1: Se0 LCP: TIMEout: State ACKsent
Router 2: Se0 LCP: TIMEout: State REQsent
Any ideas? Both have the same encapsulation and are using ESF/B8ZF. Power cycling does nothing.