This is normal actually, when the client tries to make connections to offline relays or get the open graph data for links it makes a lot of failed requests
Is this causing performance issues though?
Discussion
I can't connect to most of my relays when posting a note, either, it says so with a timeout. o.o I just captured the first couple errors that weren't warnings.
Lemme see if I can get you a proper snippet...
Classic preview effect. My test note worked, this time. <.>
When I see it happen again, I'll post another snippet.