I am using a Huawei B525 in a mobile application (on a boat). When in a weak phone area (ie the sim does not get a strong signal), the performance of the whole router is degraded - this includes the performance hard-wired devices connected through the LAN sockets as well.
I have two NAS drives hard connected to this router, but access to these drives on a laptop is slow or non-existent when the sim signal is poor. Even trying to access the router setup page is painfully slow.
No problems at all with a strong sim signal. Is this a configuration issue? Any advice, please?