Hello everyone, I encountered an issue yesterday. The network structure consists of two bridges: Bridge A and a Station Bridge (Bridge B), which are configured for one-to-one bridging. Bridge A is connected to the operator's PTN (Pseudowire Technology Network) via an optical fiber, while Bridge B is connected to the operator's BBU (Base Band Unit) through another optical fiber. This entire network is used for transmitting telephone and Internet services. It has been confirmed that the two bridges are identical in terms of device version and model.
What makes this case special is that the wireless network and optical fibers are functioning normally. However, as soon as an external antenna is connected to Bridge B, the network cable loses connectivity. You can see that the local area connection on the computer keeps attempting to restore the connection, but whether it can succeed depends on luck—sometimes it works, but 90% of the time it fails.
I have already used the elimination method to rule out issues with the devices, network cables, power adapters, POE (Power over Ethernet), and power supplies. Currently, the only component I cannot eliminate is the antenna, as I don’t have a spare one on hand. Although the wireless link and optical fibers at this station can be used normally, the operator has reported intermittent outages in the wireless service. Does anyone have any solutions to this fault?