Forum Discussion
Network blocking UDP?
I use mosh (https://mosh.org/) to connect to some servers and have for years, which has normally worked fine, but for the last couple of weeks it has not worked over the tmobile network at all, the U...
I would like to update this thread with information I received this week in regards to the problem at T-Mobile with UDP blocking. I recently thought I had an issue with drivers on my laptop in regard to my Nextiva Windows phone app. I could connect on calls but neither me nor the person I was calling could hear each other on voice calls. I was connected on my T-Mobile MiFi Inseego M2000 with a 5G connection over WiFi to my LG GRAM laptop. After 1 ½ hours with Nextiva support we tried my Verizon Inseego MiFi 8800L and it worked flawlessly. As a member of RV Mobile Internet Resources, I reached on the forum and it was suggested that it could be a not very well documented issue with T-Mobile blocking UDP on 5G connections. It was suggested that I should try the T-Mobile MiFi Inseego M2000 on a dedicated 4G LTE connection and viola it worked like a charm. On RV Mobile Internet Resources center forum Andy linked this post. So I figured I would post the solution here too, hopefully this help someone and get the attention of T-Mobile to document that there is an issue with UDP blocking on 5G.
