Hello all, I am still having an issue with an Internal LIcense error (reference prior question and answer below). What we have found is, the issue does not exist in V5r3. It is when we upgrade to V5r4 that the issue surfaces. We have to go to V5r4 for the 128 bit encrytpion option. All Service Packs and PTF's are applied. Again, any solution would be greatly apprecaited...

Previous question
We are running AS/400 client access v5r4 SP SI29771 on Windows XP SP3. Approx every 4 to 5 weeks users will get an Internal License error CWBLM001. Only fix we have is to give admin rights, open the application, remove rights, and the application opens fine for another 4 to 5 weeks and then we repeat the process. Is there a permanent fix?
Don't know if this will fix it, but it's worth a look.

Answer
Client Access has a setting to automatically check the service level. You can disable it (Start > programs > IBM iSeries Access for Windows > IBM iSeries Access for Windows properties > Service - Select Never for when to check)

If it is enabled it may "periodically" check - which could be 4 to 5 weeks - and it may need admin rights, depending on how Windows is set up.