Alexa requests not completing

[clrity]

@guyonabuffalo I had a similar issue night before last. "Alexa, play the bridge on SiriusXM".
She said "Ok, playing..." and then silence. What? Is the station off the air?? Tried another station but no luck.

This morning I was working in my office and I heard about 10-15 seconds of music from the echo there where I had tried playing before.
While I was investigating I heard about 5-10 seconds of it a couple of times.
I restarted my firewall but still silence.
I created a rule to permit RTP (TCP/UDP) on WAN from any to any but still silence on my living room echo,
I reset the SiriusXM skill but still silence after asking again.
Then I tried asking on my office echo and it worked.
Tried again in living room but silence so I restarted the echo and then it worked.

In the end I wonder if just restarting the living room echo would have fixed it.
I'll may never know but if it happens again, I'll start with restarting the device, then try other devices, then reset the skill, finally the firewall...