I used my connection with Thomson 585v7 perfectly and yesterday I upgrade my internet to fiber optic modem the Huawei HG8245 but now the current cost bridge is not recognized by the Huawei.

Then I connect it again to the Thomson suspecting of a bad LAN cable and it worked fine, so why would this brand new garbage of Huawei doesn't recognize my Current Cost Bridge.

Who have been used the HG8245, tell the answer please, any help should be appreciate.