Cisco ISR 890 keeps WAN port Shutdown

[amh4y0001]

Hi,

I have Cisco ISR 890 series (System image file is "c800-universalk9-mz.SPA.154-3.M9.bin".).

I noticed recently that it started to "down" the interface GE8. GE8 is the WAN port and using DHCP.

I have checked the interface for the Admin Shutdown (did again no shut), changed cable etc, but same results. When I use this Ge8 cable to some other ports, I can see that interface get link (this means cable is not damaged).  Any thoughts ...? Below is the output of the Sh Interface GE8:

///////////////////////////////////////////////////////////////////////////////////////////////////////

GigabitEthernet8 is down, line protocol is down
Hardware is PQ3_TSEC, address is ???.69e6 (bia ????.????.69e6)
Internet address will be negotiated using DHCP
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full Duplex, Auto Speed, media type is unknown media type
output flow-control is unsupported, input flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:02:25, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
1 packets output, 60 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

///////////////////////////////////////////////////////////////////////////////////////////////////////

[amh4y0001]

Hi,

Instead of connecting to GE8, I connected a PC (the same way if it was Ge8 port), so the pacts were in place (no direct connection to the ISP device).

[amh4y0001]

Hello again,

Problem solved, thanks all for the suggestions.

Old__Full Duplex, Auto Speed, media type is RJ45

New__Full Duplex, 100Mbps, media type is RJ45

So changing the speed to 100 Mbps make the Ge8 port in up state, still with full duplex. Why I must mention speed manually? Actually I do have 2 more devices (same hardware , same ISP), and they are working fine.

Any points to remember?

[Mark Malone]

Looks like they have it hard set on their end on the modem you need to match exactly their settings , may have it set to auto negotiate on there other devices , you could ask them to confirm, they should be easily able to check if they have management of the modems remotely.

[amh4y0001]

Great, thanks for information.