@1808geek I would try using selected channels for WIFI. Adding more routers and APs may make things worse in small area.

@TheresaG Try power off and unplug both the modem and router for 10 min, plug in the modem and power on, wait for it to connect, them plug in the router and power on. This resets the connection...

@xellos2099 To use that router in AP mode, you need to connect it to the other router via an Ethernet cable. What you want is a Travel router. Some will do what you want.

@Yobh Have you tried different Ethernt ports on the router and the Charter Gateway?

@Yobh generally when Ethernet is just below 100 the first thing to check is the cables and the connectors. Do look at the connectors on the router and modem for missing or bent pins since you tried...

@TomMu Been many years since I set up and used a mail server. Some things come to mind. reserve the MAC address of the PC in the router and restart the router. Do you need to open and assign some...