# CCGX GSM / LTE 4G-E error 154 no DNS **URL:** \ **Category:** Q&A and troubleshooting\ **Tags:** hybrid\_generators, ccgx\_color\_control, beginner, victron\_community, vrm\ **Created:** [5 September 2024 15:20 UTC](https://community.victronenergy.com/t/ccgx-gsm-lte-4g-e-error-154-no-dns/2319 "2024-09-05T15:20:05Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![IainPoleson](https://avatars.discourse-cdn.com/v4/letter/i/eb9ed0/32.png) [@IainPoleson](https://community.victronenergy.com/u/IainPoleson)\ **Post date:** [5 September 2024 15:20 UTC](https://community.victronenergy.com/t/ccgx-gsm-lte-4g-e-error-154-no-dns/2319/1 "2024-09-05T15:20:05Z")
Hi, I’m having trouble with a CCGX and a GSM modem. The original gsm modem failed and couldn’t detect the sim, we ordered a new modem which is a GX LTE 4G-E, this modem now shows up on the CC screen as connected to the internet using a Vodafone sim but when trying to connect to the VRM I get error 154 DNS failure. I’ve removed the sim and checked in a wireless router and it can run data through that although can’t connect to the CC as it’s Wi-Fi only router. I also can’t check for any firmware updates so it seems as though the CC is offline although it claims to have an internet connection. I assume that the LTE 4G-E is just a newer version than the old GSM? Any help greatly appreciated. ---
**Author:** ![MikeD](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/miked/32/1522_2.png) [@MikeD](https://community.victronenergy.com/u/MikeD)\ **Post date:** [19 December 2024 18:35 UTC](https://community.victronenergy.com/t/ccgx-gsm-lte-4g-e-error-154-no-dns/2319/2 "2024-12-19T18:35:59Z")
If you log onto your modem, you should be able to access the settings for the LAN - make sure that the DNS server ip is configured there, it may also be able to accept an alternative DNS such as 8.8.8.8 also check your CC-GX configuration to see if manually programming the IP for the router, subnet and DNS server can fix the problem.