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I've recently been trying to set up a tunnel server, but when I run the server following the official guide, I keep getting the following errors in the terminal: [7/3/2026 1:30:48PM UTC] Tunnel Heartbeat: The remote server returned an error: (403) Forbidden. [7/3/2026 1:30:49PM UTC] Tunnel V2 Heartbeat: The remote server returned an error: (403) Forbidden. I have already tried switching to a different cloud server, but the result is exactly the same. I couldn't find any similar cases online, and other tunnel server owners I've asked haven't experienced this issue, so I'm hoping to get some help here. My setup: OS: CentOS 7 TCP and UDP ports opened: 8054, 3478, 50000, 50001 Commands I've tried running: nohup ./cncnet-server --name "[CN]harrypan.cn" --maxclients 32 --port 50001 --portv2 50000 >cncnet-server.log 2>&1 & and ./cncnet-server --name "My cool server" --maxclients 200 --port 50001 --portv2 50000 Both result in the same 403 Forbidden,and they repeat it every once in a while。 No other error messages appear after that. Does anyone know what could be causing the master server to return 403? Is there any additional configuration or whitelisting step I might have missed? Any advice would be greatly appreciated. Thanks in advance!

what a lot of shite 10/10 in 4v4s in so unbalanced  so many newbies  games  where u need sams mostly  games u play hide and seek and still die  u dont even know how to play nod at times there a few of you out there like that list goes on"  

neither of you have a clue what youre talking about.

Thanks mate.   Well it's been a busy few years, I finally released my big Sid Meier's Civilization II 30th Anniversary Tour video showcasing hundreds of the best Civ2 scenarios & mods that I painstakingly searched, rescued & preserved over the years. I then released my huge Civ2 Heroes of Might & Magic total conversion mod and my Civ2 How to play as Barbarians scenario & tour video too. But more importantly the time has come to make the final touches to and release my next big total conversion scenario for Civ2!  . C&C Final Dev Diary 03 – Sounds, Videos, GUI, Diplomacy & more for the Civ2 Command & Conquer Scenario: In this final third dev diary we overhaul and finalise all the sound effects, videos, GUI colours & backgrounds, diplomacy, and city buildings with C&C assets. https://www.moddb.com/mods/civilization-2-command-conquer-scenario/news/final-dev-diary-03-sounds-videos-gui-diplomacy-more-for-the-civ2-command-conquer-scenario . C&C - Civilization 2 Command & Conquer Tiberian Africa Scenario Release: Well after much delay I'm finally releasing my Command & Conquer Tiberian Africa Scenario for Sid Meier's Civilization 2. This remaster takes Wonx2150's original Civ2 CnC Africa scenario containing CnC1&2 units and overhauls its graphics & expands the unit lineups using assets from CnC2 Tiberian Sun and some of the best CnC fan projects out there! https://www.moddb.com/mods/civilization-2-command-conquer-scenario/news/civ2-cnc-tiberian-africa-scenario-release