All Solutions
What are batch licenses and how can I use them?
Solution Number: 1304 Versions: All versions##What are Batch Licenses? The license file for COMSOL Multiphysics® contains a list of license features that correspond to the different COMSOL products and software components. With a single Floating Network ...
Licensing error -9,57 when launching COMSOL Multiphysics
Solution Number: 1340 Versions: All versionsWhen launching COMSOL with a CPU-locked or named single-user license, I see the following error: Could not obtain license for COMSOL Multiphysics GUI. Please contact support@comsol.com for assistance and include ...
Security Vulnerabilities in PHP
Solution Number: 1339 Versions: All versionsIs the COMSOL product suite affected by CVE-2026-109618 and CVE-2026-109619? No. COMSOL products, including COMSOL Server and the Model Manager Server, do not contain PHP. The COMSOL website was updated on the same day ...
Security Vulnerabilities in Apache Log4J 2.x
Solution Number: 1334 Versions: 6.4, 6.3Does the COMSOL software contain the Apache Log4j 2.x library and, if so, is it affected by known security vulnerabilities in it? # Summary The following COMSOL software include the Apache Log4j 2.x library: COMSOL ...
Security Vulnerabilities in Apache Tomcat
Solution Number: 1327 Applies to: COMSOL Model Manager Server, COMSOL Multiphysics, COMSOL Server Versions: All versionsDoes the COMSOL software contain the Apache Tomcat® software and, if so, is it affected by known security vulnerabilities in it? Can the bundled Apache Tomcat version be updated before the next COMSOL product update? # ...
Permission elevation issue when trying to update COMSOL Multiphysics
Solution Number: 1338 Versions: All versionsAfter going to File > Help > Check for Product Updates I get the following error This issue seems to arise from a Windows Security update. There are two suggested workarounds Launch COMSOL Multiphysics with ...
Why is my license manager log filled with DENIED: SERIAL entries
Solution Number: 1337 Versions: All versionsWhen reviewing the license manager log file, it is filled with entries like this: 14:29:48 (LMCOMSOL) DENIED: "SERIAL" uname@hostname "vX.Y"(License server system does not support this version of this feature. (-25 ...
Security Vulnerabilities in Apache Solr
Solution Number: 1333 Versions: 6.4, 6.3Does the COMSOL software contain the Apache Solr™ software and, if so, is it affected by known security vulnerabilities in it? # Summary The following COMSOL functionality uses a bundled distribution of the Apache ...
Communication error with remote service when using COMSOL Chatbot with GPT-5
Solution Number: 1336 Versions: All versionsWhen using the COMSOL Chatbot with the OpenAI or Azure OpenAI providers and a reasoning model such as GPT-5 a “Communication error with remote service” occurs This issue can occur when the Chatbot does not begin ...
COMSOL 6.4 macOS Apple Silicon Native Support
Solution Number: 1335 Versions: 6.4Please note This entry concerns COMSOL 6.4. For COMSOL 6.3, COMSOL 6.2 and 6.1, please see Knowledge Base 1321, Knowledge Base 1307 and Knowledge Base 1300 respectively. System Requirements COMSOL 6.4 for macOS ...
