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Please need help to configure 3G SIM card for 887G router backup

firestormnet
Level 1
Level 1

Hi all.

I have one problem regarding a configuration (or setting up) of  3G SIM card for 887G router backup.

That  SIM card had a PIN code, so I disabled it, and now I can see that 3G  light flashes Blue, so it detects 3G network. Also I can see that modem  tries to dial up to connect to network, but with no luck. It has CHAP  APN. Also in configuration I've found that there is PPP CHAP username  and password, but I don't have any of those. I've tried to configure my  SIM card with Username and Password, but it doesn't save.

At the moment I have:

Cellular 0 is down, line protocol is down.

Dialer 2 is up (spoofing), line protocol is up (spoofing).

SIM card status is OK.

Network detects O2 - IRL - yes.

It detects the network, but cannot connect to it.

I'm not sure how to setup the SIM card or how to unlock it.

Any help will be appretiated.

3 Replies 3

paolo bevilacqua
Hall of Fame
Hall of Fame

Try "debug ppp neg" and "debug ppp auth" with "term mon".

firestormnet
Level 1
Level 1

Does anybody know how to change a SIM profile in the router? Now, it's a default one, but I setup a new one Profile 1 with Username and Password, but how to use that profile, I'm not sure what CLI command is, if possible?

Thanks

I've tried the debug commands, but nothing comes up. I tried debug all, and found: "Cellular0: Async Interface dial-out failure".

I asked 3G provider to give me a Username and Password for SIM card to dial-up if such exist.

Everything works now. I figured out how to using Cisco 800 series routers configuration guide.