VoiPo Service Issues Today?

Over the weekend I switched from my broken router to a new one (now using a Rosewill RNX-N150RT running DD-WRT v24-sp2 build 21153).

After the setup I notice today that calls are not terminating correctly. If I call my cellphone from my VoIPo line and then hang up, the party which does not hang up stays connected until you manually hang up from that phone.

I have the same port range forwarded to my ATA that I did with my old router that worked perfectly, which is 5004 - 10000 (UDP).

When I went to look at VoIPo's support page it takes at least 30s and closer to a minute to pull up the front page and the support page. Chrome shows the delay as "Waiting for internal.voipwelcome.com", so I'm not sure if the problems I am having are due to this new setup I have or whether VoIPo itself is having problems today.