API website nolonger accessing MT routers on a different subnet

I hope someone can help me. We had a while back a program written to pull data from our 6 MT routers.

It uses a Ubuntu server, with PHP scripting and was working fine until Febr 25 2026. Now it only accesses the router on the same subnet as the server is on, but not across the other networks. A quick check I found an Ubuntu update

CVE-2026-25965

Publication date 24 February 2026

Last updated 25 February 2026

Not sure if it is connected, but that febr 25 was the last time the routers on the other networks saw the user (server) login to pull api data.

I did a traceroute from the server and was able to find all the routers - no problem.

I tried contacting the person that wrote the scripts, but no answer. Can someone here give me some direction?

TIA.

... is for ImageMagick, which deals with raster images? https://ubuntu.com/security/CVE-2026-25965 refers