Internal connection not working - external OK?

[[email protected]]

Hello, I'm trying to set up (two different) PCs on my internal network to connect to my FG game.

The external users work, internal does not. I tried with both internal and external IPs and the alias.

Ideas?

-KT

[21.03.2020 14:25:47] Runtime Notice: Initializing DirectX
[21.03.2020 14:25:47] Runtime Notice: Initializing COM
[21.03.2020 14:25:47] Runtime Notice: Fantasy Grounds starting
[21.03.2020 14:26:05] Runtime Notice: User 'JoJo' attempting connection to '10.0.0.172:1802'
[21.03.2020 14:26:26] Network Notice: Client unable to connect to host - Could not connect to the host. Check your network settings and verify the host address, then try again.
[21.03.2020 14:28:09] Runtime Notice: Resolving alias
[21.03.2020 14:28:09] Runtime Notice: Alias translate result = 76.28.34.232
[21.03.2020 14:28:09] Runtime Notice: User 'JoJo' attempting connection to '76.28.34.232:1802' using alias 'meek quill good zone'
[21.03.2020 14:28:30] Network Notice: Client unable to connect to host - Could not connect to the host. Check your network settings and verify the host address, then try again.

[Zacchaeus]

Internal connections use the Internal IP rather than the external or alias.

Can the player ping the internal address of the host machine?

[[email protected]]

Hmm, no I can't ping the other machine. :/

[Zacchaeus]

Something on your network is therefore preventing machines from talking to one another on the network. It could be some kind of firewall on the router or something in the Anti Virus software you are using on either machine.

[[email protected]]

So, I turned on file & print sharing, and can ping that machine.

Still getting the same errors, using either IP address:
[21.03.2020 19:28:46] Runtime Notice: User 'JoJo' attempting connection to '10.0.0.172:1802'
[21.03.2020 19:29:07] Network Notice: Client unable to connect to host - Could not connect to the host. Check your network settings and verify the host address, then try again.
[21.03.2020 19:29:34] Runtime Notice: User 'JoJo' attempting connection to '76.28.34.232:1802'
[21.03.2020 19:29:55] Network Notice: Client unable to connect to host - Could not connect to the host. Check your network settings and verify the host address, then try again.

[LordEntrails]

Some routers have an option called "Isolation" or similar. This prevents computers from talking to each other on the same network. More common on public or guest networks than most home/work/private networks, but log into your router and make sure that is not the case.

Also make sure that the network connection on both/all computers are set to a private network type (home or work) and not public.

[[email protected]]

Trying to figure out how to turn off AP Iso on a Arris TG3482G router. I'll let you know...