NetScaler GSLB static proximity feature does not work after upgrading to 11.0 or 11.1 firmware.

The following error is displayed when the nsmap command is run on the NetScaler:
Error getting location. ErrorCode: 0x75b

To resolve this issue delete the nslocation.* files from the /var/netscaler/locdb/ directory and then re-run the configuration to add the location file.

root@NS-Cumulus1# cd /var/netscaler/locdb/
root@NS-Cumulus1# ls

GeoIPCountryWhois.csv           GeoLite2-City-Locations-en.csv  IP2LOCATION-LITE-DB1.CSV        nslocation.ck                   nslocation.db

root@NS-Cumulus1# rm nslocation.*

> add locationfile /var/netscaler/locdb/GeoIPCountryWhois.csv -format geoip-country

Problem Cause

The nslocation files are not correctly read after upgrading the NetScaler to 11.0 or 11.1.