No one has that sort of pull with Valve, so he's bull~~~~ting you
This is pretty much a Steam issue that's been affecting most Source Mods and some commercial games; most likely the result from
this
There's no known fix but check these links to see if you can resolve it
Unpredictable Server Browser:
https://support.steampowered.com/kb_...5539-MJWZ-7760
Unable to find Dedicated Server:
https://support.steampowered.com/kb_...6253-IOAB-2296
Network Troubleshooting for Steam:
https://support.steampowered.com/kb_...1456-EUDN-2493
Ports required for Steam:
https://support.steampowered.com/kb_...8571-GLVN-8711
Otherwise, all you can really do is wait until the downtime ends, or you can pester Valve about it by making a
Help Ticket