New submission and login window

One of our potential authors has problems with adding New submitting. He successfully registered with the site, however every time when he click on the “New submission” option, the site sends him back to the login window.
He use Win 10 and he tried with Firefox and chrome.
We do not receive any comments from other authors.
Grateful for any help.
Kind regards,

Hi! @aas
Try setting session_check_ip to OFF in Config file. Dynamic Ip might be an issue either at server end or user end.

Thanks for the quick reply. I’ll try and let you know if the matter is resolved.

The author accessed the AAS via the antenna. When he tested it on a cable from another computer, he had no problems. So we did not setting session_check_ip to OFF in Config file.
Kond regards,