We have upgraded from R80.30 to R81 everything seems fine, but on Remote Access VPN we have periodic connection failures for several users and they have next error: “Connection Failed You cannot receive an office mode IP address at this time…” there is screen also.
we noticed that, problem appears to users which had unexpectedly disconnected from VPN for several various reasons.
And that’s why problem repeats every day with several various users (5 to 10 users by day), also 2-3 same users too.
At this point we are resolving this 5-10 issues by changing ip addresses in ipassignment.conf file for problematic users. Also for troubleshooting purposes I have returned old ip to user after several minutes but same error appeared.
it seems as if there is problem with tunnel for user also problem is resolved by resetting tunnel but in most cases session disappears in "tunnel and user monitoring" view so I cant reset it and I am forced to change ip address in ipassignment .conf file and access policy too for each user.
we are assigning ip addresses to vpn users only via ipassignment.conf file. Also we have edited $FWDIR/conf/trac_client_1.ttm file according to our needs. And this configurations worked for us fine on R80.30 and we think that this settings should be okay with R81 also.
please share your experience, I have already opened case but still waiting for response.