**Please read this post before asking questions on the [mailing list](MailingList).**
## General
1. Search the [Mailing List Archives](http://lists.eurecom.fr/sympa/arc/openair4g-devel) if the problem was not already treated.
1. Look in the list of [know bugs](OpenAirCriticalIssues) and at the [issues on gitlab](https://gitlab.eurecom.fr/oai/openairinterface5g/issues)
## Questions related to basic installation of OAI (core + optional packages)
1. Look at the logfiles that are generated after installation for errors
1. Send these log files along with information on your machine (VM, Ubuntu 14.04?) and x86 CPU type
## Questions related to compilation of OAI (oaisim + lte-softmodem)
1. Look at the logfiles that are generated after installation for errors
1. What command did you use for compilation?
1. Send these log files along with information on your machine (VM, Ubuntu 14.04?) and x86 CPU type
## Questions related to oaisim/lte-softmodem execution
1. Look at the logfiles that are generated after installation for errors
1. What command was used for compilation?
1. What command was used for execution? In case of lte-softmodem, what is your physical setup (USRP/ExpressMimo/XXX, antennas/direct connection/attenuators/XXX, UE is phone/dongle/OAI based)?
1. Send these log files (compilation + execution) along with information on your machine (VM, Ubuntu 14.04?) and x86 CPU type
1. Send the config files which were changed for your setup
1. If HSS database was changed, send the image of the database
1. Upload the wireshark trace (eNB and EPC) on a dropbox/google drive capturing the traffic on ALL interfaces. Please do not send wireshark trace as an attachment to the mailing list. **If these files are too big (which should not be the case), please do not send them on the mailing list**, but upload them on google drive/dropbox folder and send everyone the link. Please refrain from sending huge attachments to the mailing list.
