Generally, wireless routers support 30M bandwidth, and gigabit routers can support 100M bandwidth.If you only have 2M, it is estimated that the incoming bandwidth is not enough.
The public broadband you use will slow you down if there are more Internet users.It may also be that the speed of the network cable router is limited.Check the speed supported by the network cable, whether the router is an old model, and the settings of the router.
