# Allow Net Tcp through Firewall **Category:** [Epicor ERP 10](https://www.epiusers.help/c/e10/5) **Created:** 2016-11-01 14:07 UTC **Views:** 1917 **Replies:** 5 **URL:** https://www.epiusers.help/t/allow-net-tcp-through-firewall/36038 --- ## Post #1 by @Jonathan_Lang I was wondering of anyone has received the error "Allow Net Tcp through firewall" while setting up an Application Server: All firewalls are turned off on the servers. I'm looking at the Nic cards to see if there's a problem there, but so far I'm coming up with zip. Thanks, Jonathan --- ## Post #2 by @rbucek temporarily turn on your firewall when deploying the app server. For whatever reason it can't validate something if the firewall is off and it has a fit. I found it's just easier not to fight it. I simply do it through services. --- ## Post #3 by @Jonathan_Lang LMAO! You have to be kidding me? It worked Rob. Problem resolved. Turn on Firewall when getting the "Allow Net Tcp Through Firewall" during App Server Configuration. Thanks Rob. --- ## Post #4 by @rbucek [quote="Jonathan_Lang, post:3, topic:36038, full:true"] LMAO! You have to be kidding me? It worked Rob. Problem resolved. Turn on Firewall when getting the "Allow Net Tcp Through Firewall" during App Server Configuration. Thanks Rob. [/quote] thank me with a solution solved :slight_smile: It's annoying, cuz half the time i forget to turn it on because I'm in a hurry and have to run it thru again. --- ## Post #5 by @Jonathan_Lang Hmm, very strange. I did check Solution Solved checkbox with my explanation. I'll do it again, sorry about that. --- ## Post #7 by @Jonathan_Lang I checked solved, but it won't stay. I added Solved to the topic, but I'm sure you can mark the post Solved. --- **Canonical:** https://www.epiusers.help/t/allow-net-tcp-through-firewall/36038 **Original content:** https://www.epiusers.help/t/allow-net-tcp-through-firewall/36038