Expected duration: Ongoing Looking for urgent help but also long-term support for our projects.
We are working on a project that will need a number of PLCs to read data from each other over a large area, so we are trying to make to make it work with 4G and VPN.
To test this we have a test rig with 4 PLCs on it (Schneider M221), each connected to a Teletonika TRB140 4G gateway. We have configured a VPN using the Teletonika RMS VPN hub (OpenVPN).
I can log into each gateway and ping the local M221, as well as the others over the VPN network, ping times average 200ms.
I can ping each PLC from my PC using the OpenVPN client.
I can run read the data of each PLC using Modscan64, no packets are dropped.
When I connected one PLC to the other, they read the data from each other.
But I cannot get them to talk to each other over the VPN link.
I need long term support, so welcome those who can help urgently but would like a longer-term relationship as we have regular projects that need networking/OT/VPN support, and we like the Teletonika RMS solution.
Automated HubSpot Invoice System Category: API Integration, CRM, Data Integration, Email Marketing, HTML, MySQL, PHP, Software Architecture Budget: $250 - $750 AUD
02-Apr-2026 03:53 GMT
Teen Respect Article with Stories Category: Article Writing, Book Writing, Content Writing, Copywriting, Editing, Fiction, Ghostwriting Budget: ₹750 - ₹1250 INR
02-Apr-2026 03:52 GMT
NDIS Business Brand Identity Design Category: Arts & Crafts, Branding, Creative Design, Graphic Design, Illustration, Logo Design Budget: $30 - $250 AUD
02-Apr-2026 03:49 GMT
Engaging Educational Cartoon for Grade 1 Category: 2D Animation, AI Animation, AI Content Creation, Animation, Caricature & Cartoons, Fiction, Screenwriting, Script Writing, Video Production, Voice Over Budget: $30 - $250 USD
02-Apr-2026 03:49 GMT
Modern Sleek Used Car Sales Website Category: CSS, Graphic Design, HTML, PHP, User Experience Research, Web Design, Web Development Budget: $250 - $750 USD
Residential Site & Permit Plans Category: 2D Drafting, Architectural Engineering, AutoCAD, Building Architecture, Building Design, Construction Management, PHP, Web Design Budget: $30 - $250 USD
02-Apr-2026 03:45 GMT
Bots making project Category: Android, API, Automation, Bot Development, IPhone, Mobile App Development, PHP, Web Development Budget: ₹37500 - ₹75000 INR
02-Apr-2026 03:43 GMT
Recover Lost Mobile App Access Category: Database Management, Database Programming, Flutter, IOS Development, IPad, IPhone, Mobile App Development, MongoDB Budget: ₹601 - ₹1000 INR
