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I pulled out HWIC card from a Cisco 3845 router and inserted it back while the switch is powered ON. I didn’t realise this is not hot swappable while doing that. The router rebooted itself with bus error “System returned to ROM by bus error at PC 0x0, address 0x0”. After the router is rebooted I couldn’t see the HWIC ports coming up. They are showing as “Serial0/0/1 is down, line protocol is down”. Could some one help me how I can fix this?
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I pulled out HWIC card from a Cisco 3845 router and inserted it back while the switch is powered ON. I didn’t realise this is not hot swappable while doing that. The router rebooted itself with bus error “System returned to ROM by bus error at PC 0x0, address 0x0”. After the router is rebooted I couldn’t see the HWIC ports coming up. They are showing as “Serial0/0/1 is down, line protocol is down”. Could some one help me how I can fix this?

Cisco router HWIC card not working

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.