internet 3945

[Mlex1]

Hello, i have Cisco router 3945, working well, when i reboot or after electricity goes down internet doesn't working, i should go to router do shutdown and no shutdown after internet will working.

why does this happen thanks in advance 

[Mlex1]

Currently i'm waiting for ISP

[Mlex1 · Accepted solution]

we solved this problem, i don't know how i talked to ISP a few times and we came to solution and on my side we will changed sfp. Sfp worked was SC bu we will changed to LC, and also ISP also changed some configs after this problem solved. ISP didn't khow how solved this issue soled me also. 

i will close the issue

[M02@rt37]

Thanks for your feedback @Mlex1