I'm using the AX 1800 with a Spectrum modem. I bought it a month or two ago. All worked well until yesterday, when I couldn't log into about four email accounts associated with websites hosted by one company (Bluehost). Every device and email-client software couldn't find the IMAP and SMTP servers when hooked up through the AX 1800. (When I hot-spotted wireless devices like an iPad through a mobile phone to bypass the router and modem, things worked fine.) All the accounts are under four different domains and have four different IMAP/SMTP servers.

The router is working A-OK for other online activities, including web surfing and a VOIP line.

A check with Bluehost showed that all the accounts are in good working order - I can log into them through webmail portals. Setup with port servers are also correct. Bluehost thought that Spectrum must be blocking my IP from connecting with Bluehost servers.

Spectrum support zeroed in on the AX 1800 as soon as I mentioned I didn't have a rented Spectrum router. I asked them how the router could be blocking me from connecting with Bluehost email and work absolutely fine to log in and send/receive mail through my Spectrum account, for which they had no answer.

So, I'm coming here. Is there any way my AX 1800 won't connect with one company's set of IMAP/SMTP routers -- all with different domains -- but will work on another connection, like Spectrum's own domain?